The National Zoning Atlas is a collaborative project digitizing, demystifying, & democratizing ~30,000 U.S. zoning codes. It was founded by Cornell University professor Sara Bronin and has involved over 300 zoning and geospatial analysts. WHAT: Zoning laws, adopted by perhaps 30,000 local governments across the country, dictate much of what can be built in the United States. The National Zoning Atlas is helping us better understand these sometimes-opaque but incredibly influential laws by depicting their key attributes in an online, user-friendly map. As a federated academic enterprise, the National Zoning Atlas encompasses several disciplines. It is a legal research project, as it delves deeply into the regulatory frameworks that dictate so much of the way we use our land. It is a data science project, and it deploys novel systems of collecting, analyzing, and displaying geospatial and regulatory data. It is a digital humanities project, innovative in its methodology and having the potential to unlock new research on the central instrument that shapes our urban built environment, social relations and hierarchies, and geographies of opportunity. It is a social science project that will improve our understanding of our politics, society, and economy - and expand our collective ability to reimagine future, alternative, and reparative trajectories. And it is a computer science project, deploying machine learning and natural language processing to expand our understanding of how algorithms can read complex regulatory texts. WHY: Zoning laws have direct impacts on housing availability, transportation systems, the environment, economic opportunity, educational opportunity, and our food supply. Despite codes’ importance, ordinary people can’t make heads or tails of them. They are too complex and inscrutable. The National Zoning Atlas will help people better understand zoning, which would in turn broaden participation in land use decisions, identify opportunities for zoning reform, and narrow a wide information gap that currently favors land speculators, institutional investors, and homeowners over socioeconomically disadvantaged groups. It would also enable comparisons across jurisdictions, illuminate regional and statewide trends, and strengthen national planning for housing production, transportation infrastructure, and climate response. To understand the kinds of things a zoning atlas can show, review this research paper documenting the findings of the Connecticut Zoning Atlas (the first statewide atlas) and this research paper in HUD Cityscape describing the motivations of the project. HOW: To date, this project has relied on manual reviews of thousands of pages of zoning code texts and their corresponding maps. A how-to guide for these reviews is available for free download. The project is also using grant funding from the National Science Foundation and the U.S. Department of Housing and Community Development Community Block Grant Disaster Recovery Program to automate this process so we can more quickly map the 30,000 localities estimated to use zoning. Our basic operating principles are: Deploy data for the public good ​Evaluate and adapt methods and approaches ​Collaborate broadly ​Cultivate up-and-coming talent ​Assume that this is a solvable problem, worth solving ​WHO: Project participants overwhelmingly include representatives of academic institutions, nonprofits, and government agencies, with students providing important support. In addition, private partners may participate on specific geographic teams or provide data. Because this project aims to expand knowledge for the public good, its resulting online atlases will remain free to view regardless of who pitches in to create them.

City of Dunwoody Official Zoning Map (PDF)

The official Zoning Map of Jersey City in pdf form is provided below. The latest version is dated 6/3/2025. Interactive Zoning Map

Zoning and Land Use Controls Map The Zoning and Land Use Controls Map identifies the distinct zoning boundaries within the Ashland City Limits. To encourage the most appropriate and efficient use of lands and to accommodate orderly growth consistent with the Ashland Comprehensive Plan, the zoning designation of each parcel provides for the type of developments permitted. The Ashland Land Use Ordinance, Chapter 18, is the implementing document which outlines all permitted or conditional uses allowable within a given zone.

The Zoning Districts are a component of the Zoning Map which in turn is a key component of the San Francisco Planning Code. More information can be found here: https://sfplanning.org/zoning

Official Zoning map for the City of Canton. Please note, this map is unsigned and thus is not the legal/authoritative map of record.

Map gallery of Bloomington planning and zoning maps

Datasets for the New Hampshire Zoning Atlas, including (1) the core zoning data with all districts and string values for complex regulations, (2) the csv dataset with quantitative interpretations of complex regulations and base/overlay segments, (3) the GIS zoning district files, and (4) the GIS zoning files with attribute data.

The broad purpose of the Zoning Code is to implement the General Plan, to promote and protect the public health, safety, comfort, and general welfare of the residents of the Town of Gilbert. Generally, the Zoning Code is intended to:A. Direct growth with priority to those areas where infrastructure and urban services can be economically provided; B. Ensure consistency and conformity among the General Plan, zoning districts, and zoning ordinances; C. Maintain and enhance the appearance and function of both new and existing development; D. Promote an efficient use of land resources; E. Ensure compatibility among land uses; F. Ensure the provision of adequate open space for light, air, and fire safety. G. Ensure that service demands of new development will not exceed the capacities of existing or planned streets, utilities, or public services; H. Conserve the natural environment, protect environmentally sensitive areas, and enhance the quality of the built environment; I. Promote energy and water conservation through project design; J. Establish consistent standards regulating the use and physical development of land; and K. Preserve and enhance property values.

Official Zoning Map Adoption. The Town is hereby divided into zones, or districts, as shown on the Official Zoning Map which, together with all explanatory matter thereon, is hereby adopted by reference and declared to be a part of the Zoning Code.District Boundary or Classification Changes. If, in accordance with the provisions of the Zoning Code, changes are made in district boundaries, district classifications, or other matter set forth on the Official Zoning Map, such changes shall be entered on the Official Zoning Map within 15 days following the effective date of the Ordinance adopting the change.Maintenance of Official Zoning Map. The Official Zoning Map shall be maintained in electronic format by the Technology Services department, as authorized by the Director of Planning.Copies of the Official Zoning Map. Paper copies of the Official Zoning Map shall be certified as true and correct by the director of the Technology Services department authorized by the Director of Planning. Electronic copies of the Official zoning map shall not be certified as true and correct.Where uncertainty exists regarding the boundary of a zoning district, the following rules shall apply:District boundaries shown as approximately following the property line of a lot or parcel shall be construed to follow such property line. Where a district boundary divides a lot or parcel, the location of the district boundary shall be determined by the Zoning Administrator using the scale appearing on the Official Zoning Map.District boundaries shown as approximately following right-of-way lines of freeways, streets, railroads, or other identifiable boundary lines shall be construed to follow such right-of-way or boundary lines.District boundaries shown as lying within right-of-way lines of freeways, streets, railroads, or other identifiable boundary lines shall be construed to follow the centerline of such right-of- way or boundary lines.District boundaries shown as lying at the edge of a canal or drainage channel shall be construed to follow the centerline of the canal or drainage channel.If any uncertainty remains as to the location of a district boundary or other feature shown on the Official Zoning Map, the location shall be determined by the Zoning Administrator.Record of Interpretation. The Zoning Administrator shall keep a record of interpretations made pursuant to this section. The record of interpretations shall be available to the public.

Special Use Districts City and County of San Francisco Planning Department. The Special Use Districts are a component of the Zoning Map. The Zoning - Map comprises: - Zoning Districts - Height and Bulk Districts - Special Use Districts - Preservation Districts - Coastal Zone Area - Sprcial Sign Districts The official Zoning Map can be found in the San Francisco Planning Code: http://library.municode.com/index.aspx?clientId=14145&stateId=5&stateName=California (click on the links under ZONING MAPS on the left navigation column). Sec 235 of the Planning Code states: "In addition to the use districts that are established by Section 201 of this Code, there shall also be in the City such special use districts as are established in this Section and Sections 236 through 249.5, in order to carry out further the purposes of this Code. The designations, locations and boundaries of these special use districts shall be as provided in Sections 236 through 249.5, and as shown on the Zoning Map referred to in Section 105 of this Code, subject to the provisions of Section 105. The original of the numbered sectional maps of the Zoning Map for Special Use Districts referred to in Sections 236 through 249.5 is on file with the Clerk of the Board of Supervisors under File No. 191-67-2. and No. 273.80. In any special use district the provisions of the applicable use district established by Section 201 shall prevail, except as specifically provided in Sections 236 through 249.5."

Provides zoning boundaries used in the creation of the Official Zoning Atlas of Tallahassee and Leon County, Florida. For more information about this layer visit the TLCPD Website or call (850)-891-6400.Leon County Land Development Code - It is the policy of the county to permit development of land that is consistent with and in conformance with the goals, objectives, and policies established in the Comprehensive Plan through the use of this article. The official zoning map districts shall be consistent with the land uses as depicted on the adopted future land use plan map of the Comprehensive Plan.City of Tallahassee Land Development Code - It is the policy of the city to permit development of land that is consistent with and in conformance with the goals, objectives, and policies established in the 2010 Comprehensive Plan through the use of this chapter. The official zoning map districts shall be consistent with the land use designations as depicted on the adopted future land use plan map of the 2010 Comprehensive Plan.

A map amendment is a request for a zone change from one zone to another in a specific area of the District. Contains map amendments going back to 2000. New map amendments to this feature class once they are approved by the Zoning Commission and the Order is issued in the DC Register.

Shapefile of zoning section map index, grid to determine which zoning section map relates to specific areas of NYC. A sectional index grid to determine which Zoning Map refers to specific areas of New York City. Zoning maps show the boundaries of zoning districts throughout the city. The maps are regularly updated after the City Planning Commission and the City Council have approved proposed zoning changes. The set of 126 maps, which are part of the Zoning Resolution, are displayed in 35 sections. Each section is identified by a number from 1 to 35. Each map covers an area of approximately 8,000 feet (north/south) by 12,500 feet (east/west). All previously released versions of this data are available at BYTES of the BIG APPLE- Archive

Information about 488 zoning jurisdictions in North Carolina collected by civic technology volunteers at Code for the Carolinas as a contribution to the National Zoning Atlas. Information for Guilford County and Charlotte and Triangle metro areas not included in this dataset. Data collected following the standard in this document:Bronin, Sara C. and Markley, Scott and Fader, Aline and Derickson, Evan, How to Make a Zoning Atlas 2.0: The Official Methodology of the National Zoning Atlas (June 13, 2023). Available at SSRN: https://ssrn.com/abstract=4476927 or http://dx.doi.org/10.2139/ssrn.4476927

The interactive zoning map allows users to determine the zoning classification for any property in the District. Users can search zoning by specific address, square and lot, parcel, Zoning Commission (ZC) case, or Planned Unit Development (PUD), where applicable. Users can select different layers of data to display on the map, and can print reports for any selected property. Users should note that when searching for a PUD, the ZC case name and ZC case number reflect the most recent case name and case number associated with the PUD. If you have questions, comments, or suggestions regarding the zoning map, contact the Office of Zoning at (202) 727-6311 or dcoz@dc.gov.

Special Use Districts City and County of San Francisco Planning Department. The Special Use Districts are a component of the Zoning Map. The Zoning - Map comprises: - Zoning Districts - Height and Bulk Districts - Special Use Districts - Preservation Districts - Coastal Zone Area - Sprcial Sign Districts The official Zoning Map can be found in the San Francisco Planning Code: http://library.municode.com/index.aspx?clientId=14145&stateId=5&stateName=California (click on the links under ZONING MAPS on the left navigation column). Sec 235 of the Planning Code states: "In addition to the use districts that are established by Section 201 of this Code, there shall also be in the City such special use districts as are established in this Section and Sections 236 through 249.5, in order to carry out further the purposes of this Code. The designations, locations and boundaries of these special use districts shall be as provided in Sections 236 through 249.5, and as shown on the Zoning Map referred to in Section 105 of this Code, subject to the provisions of Section 105. The original of the numbered sectional maps of the Zoning Map for Special Use Districts referred to in Sections 236 through 249.5 is on file with the Clerk of the Board of Supervisors under File No. 191-67-2. and No. 273.80. In any special use district the provisions of the applicable use district established by Section 201 shall prevail, except as specifically provided in Sections 236 through 249.5."

Analysis of ‘Zoning Map - Zoning Districts’ provided by Analyst-2 (analyst-2.ai), based on source dataset retrieved from https://catalog.data.gov/dataset/28f51f62-ddc4-40c4-8e22-32de984f2745 on 13 February 2022.

--- Dataset description provided by original source is as follows ---

Zoning Districts City and County of San Francisco Planning Department. The Zoning Districts are the main component of the Zoning Map. The Zoning Map comprises: - Zoning Districts - Height and Bulk Districts - Special Use Districts - Preservation Districts - Coastal Zone Area - Special Sign Districts The official Zoning Map can be found in the San Francisco Planning Code: http://library.municode.com/index.aspx?clientId=14145&stateId=5&stateName=California (click on the links under ZONING MAPS on the left navigation column). Summaries of the Zoning District codes can be found here: http://www.sf-planning.org/index.aspx?page=1580 Section 105 of the Planning Code states: "The designations, locations and boundaries of the districts established by this Code shall be shown upon the "Zoning Map of the City and County of San Francisco," which shall consist of a series of numbered sectional maps. Wherever any uncertainty exists as to the boundary of any district as shown on said sectional maps, the following rules shall apply: (a) Where boundary lines are indicated as following streets and alleys within the right-of-way, they shall be construed as following the centerlines of such streets and alleys; (b) Where boundary lines are indicated as approximately following lot lines, such lot lines shall be construed to be such boundaries; (c) Where a boundary line divides a lot or crosses unsubdivided property; the location of such boundary shall be as indicated upon the Zoning Map using the scale appearing on such map; (d) Where further uncertainty exists, the City Planning Commission upon written application, or on its own motion, shall by resolution determine the location of a disputed boundary giving due consideration to the apparent indicated location thereof and the scale of the Zoning Map and the express purposes of this Code; (e) Wherever any property is not under these rules specifically included in any use district shown on the Zoning Map, such property is hereby declared to be in an RH-1(D) District, except that all property owned on the effective date of this amendment by the United States of America, State of California, City and County of San Francisco, or other governmental agency and within the City and County of San Francisco but not within the area covered by Sectional Maps Nos. 1 through 13 of the Zoning Map is hereby declared to be in a P (Public Use) District unless reclassified in accordance with the provisions of this Code; (f) Wherever any property is not under these rules specifically included in any height and bulk district shown on the Zoning Map, such property is hereby declared to be in a 40-X height and bulk district, except that all property owned on the effective date of this amendment by the United States of America, State of California, City and County of San Francisco, or other governmental agency and within the City and County of San Francisco but not within the area covered by Sectional Maps Nos. 1H through 13H of the Zoning Map is hereby declared to be in an OS (Open Space) District unless reclassified in accordance with the provisions of this Code, with the exception of Yerba Buena Island and Treasure Island which are hereby declared to be in a 40-X height and bulk district."Updated quarterly.

--- Original source retains full ownership of the source dataset ---

This map known as the "Zoning Ordinance Map" is part of "The Zoning Ordinance of the City of Bethlehem." This Ordinance is also known as "the Zoning Code" or as "Part 13" of the Codified Ordinances of the City of Bethlehem. The Zoning Ordinance of the City of Bethlehem is intended for regulating and restricting the height, location, size and use of buildings and/or land in the City of Bethlehem, Pennsylvania, the areas to be occupied by buildings in proportion to the size of the lots upon which they stand: the size of yards and other open spaces appurtenant thereto and the density of population, and for these purposes establishing districts and boundaries, and other uses within such districts and boundaries and providing for the appointment of a Zoning Hearing Board, and setting forth the duties and functions of said Board and providing for administration, charges and enforcement of this Ordinance and providing penalties for violation thereof.The Bethlehem Zoning Map consists of maps accurately showing the boundaries of various zoning districts. The zoning map information may be maintained and updated using computer files. At least one paper copy of the official map is also maintained and available in the Zoning Office. The zoning map and all notations, references and data shown thereon are hereby incorporated by reference into this Zoning Ordinance and shall be as much a part of this Zoning Ordinance as if all were fully described herein.District Boundaries: Where uncertainty exists with respect to the boundaries between districts as shown on the Zoning Map, the following rules shall apply. (a) Where district boundaries are indicated as approximately coinciding with streets, alleys, waterways, or railroad rights-of-way, the center line of such features shall be construed to be such boundaries unless otherwise indicated on the Map. (b) Where district boundaries are indicated as approximately coinciding with lot lines that existed at the time of the adoption of the Zoning Map, they shall be construed as following such lot lines. (c) Where district boundaries do not coincide with a physical feature or lot line, and are not fixed by dimensions on the Zoning Map or notes, the boundary shall be determined using a scale. GIS NAD, 1983 PA South State Plane Coordinator Systems Zone 3702. (d) All areas of the City which are under water and are now shown as included within any district shall be subject to all of the regulations of the district which immediately adjoins the water area. If the water area adjoins two (2) or more districts, the boundaries of each district shall be construed to extend into the water area in a straight line until they meet each other. (e) Where land area has become a part of the City by annexation, the same shall automatically be classed as being in the "R-R Residential" district until such classification shall have been changed by an amendment to the Zoning Ordinance as provided herein. (f) Whenever any street, alley, or other public right-of-way is vacated, the zoning district adjoining each side of such street, alley, or public right-of-way shall be automatically extended to the center of such vacation based on the GIS State Plane Coordinates the street centerline boundary. Classes of Districts: For the purposes of this Zoning Ordinance, the City is divided into the following zoning districts: CB Central Business DistrictCG General Commercial DistrictCL Limited Commercial DistrictCM Office - Research Center DistrictCM-LTN Landmark Conservation and Traditional Neighborhood Development Overlay DistrictCMU Mixed Use Commercial DistrictCS Shopping Center DistrictI Institutional DistrictI-O Institutional Overlay DistrictIN Industrial DistrictIN-O Industrial Overlay DistrictIR Industrial Redevelopment DistrictIR-R Industrial Redevelopment - Residential Option DistrictLI Light Industrial DistrictPI Planned Industrial DistrictR-RC Residential Retirement Complex DistrictRG Medium Density Residential DistrictRR Rural Residential DistrictRR-F Residential Overlay District - Friedensville RoadRR-T Residential Overlay District - Township Line RoadRS Single Family Residential DistrictRT High Density Residential DistrictRT-SH Student Housing Overlay District

From 1999 thru March 30, 2015, records show a total of 28 ZAA (Zoning Amendments, e.g. County-approved zoning changes) decisions were issued. It is not known what, if any, processes or procedures existed to update the Zoning layer when a ZAA was approved. It is likely that some, but not all, of these changes are reflected in the Zoning Layer. It is possible that none of these changes are correctly reflected in the Zoning layer. Annexations since 1999 may not be accurately reflected in this layer.It is not known if any double-checking or quality-control process has ever been done between the Official Zoning Atlases kept in the Planning Department and the Zoning layer. Experience has shown very little inconsistency between the Zoning Atlases and the Zoning layer during work in the Planning Department. It expected that the accuracy rate between the Zoning layer and Zoning Atlases is greater than 95%. This layer is accurate to the parcel level. Some parcels may be slightly shifted. Any shifting that has occurred is expected to be less than 15 feet in any direction.