Parcel Data for DuPage County, IllinoisThis parcel layer makes up the county working parcel feature layer. This is not the end of tax year parcel layer. Some new parcel polygons in this layer may have not been finalized by the DuPage County Clerks Office at this time.DuPage County Parcel Data: NOTE: Field ACRE_SOURCE = 0 is Calculated, 1 is Deeded, NULL is unverified.This web map is utilized in the "Parcel Viewer" interactive web mapping application.

This real estate dataset details parcel information for DuPage County, Illinois. The dataset was created and is maintained by the DuPage County Information Technology Department, GIS Division in conjunction with the DuPage County Clerk for the visual and spatial representation of deeds, road rights-of-way, and subdivision plats. The data are complete up to and including Assessment Year 2014. -- "Assessment Year" refers to a complete inventory list of all parcels including billing address and taxing body jurisdictional boundaries by January 1st of the assessment year. In DuPage County, this is information is maintained in a County provided assessment administration computer system. The feature class contains the Assessment Parcels Current which is published on a weekly basis (see feature class name for the date of creation).

© DuPage County Information Technology Department, GIS Division 630-407-5000 This layer is a component of DuPage County Parcel Data.

DuPage County Parcel Data: NOTE: Field ACRE_SOURCE = 0 is Calculated, 1 is Deeded, NULL is unverified.

DuPage County tax district Airport Authority, for Assessment Year 2024

Unincorporated Areas in DuPage Co., IL for tax assessment year 2017.

Special police districts in DuPage Co., Illinois, for the Assessment Year 2024

1956 Imagery (For reference only not to any scale)

Federal Emergency Management Agency 20190801 DIGITAL FLOOD INSURANCE RATE MAP DATABASE, DU PAGE COUNTY, ILLINOIS USA FEMA-DFIRM-Final

   Washington, DC
   Federal Emergency Management Agency

  https://msc.fema.gov


    Federal Emergency Management Agency
    Unknown
    FEMA CASE 07-05-5715S





 The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system. The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.
 The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act, which "... requires the purchase of flood insurance by property owners who are being assisted by Federal programs or by Federally supervised, regulated or insured agencies or institutions in the acquisition or improvement of land facilities located or to be located in identified areas having special flood hazards" (Section 2 (b) (4) of the Flood Disaster Protection Act of 1973). In addition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood coverage offered through the NFIP.
 The DFIRM Database presents the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The DFIRM Database is a subset of the Digital FIS database that serves to archive the information collected during the FIS.




   20190801


 FIRM and FIS Effective Date


 Complete
 Unknown



  -88.39
  -87.83
  42.08
  41.61




  ISO 19115 Topic Category
  hydrology
  environment
  inlandWaters
  structure
  transportation
  elevation


  FEMA NFIP Topic Category
  DFIRM
  FIRM
  FEMA Flood Hazard Zone
  DFIRM Database
  Special Flood Hazard Area
  Digital Flood Insurance Rate Map
  CBRS
  Coastal Barrier Resources System
  Riverine Flooding
  Coastal Flooding
  NFIP
  Base Flood Elevation
  SFHA
  Flood Insurance Rate Map
  Floodway


  Geographic Names Information System
  REGION 5
  STATE IL
  COUNTY DuPage
  COUNTY-FIPS 043
  COMMUNITY DuPage County IL and Incorporated Areas
  FEMA-CID 17043C


None
The hardcopy FIRM and DFIRM maps and the accompanying FISs are the official designation of SFHAs and Base Flood Elevations (BFEs) for the NFIP. For the purposes of the NFIP, changes to the flood risk information published by FEMA may only be performed by FEMA and through the mechanisms established in the NFIP regulations (44 CFR Parts 59-78).
These digital data are produced in conjunction with the hardcopy FIRMs and generally match the hardcopy map exactly. However, the hardcopy flood maps and flood profiles are the authoritative documents for the NFIP.
Acknowledgement of FEMA would be appreciated in products derived from these data.



   Federal Emergency Management Agency

  Federal Insurance and Mitigation Administration

   mailing
   500 C Street, S.W.
   Washington
   District of Columbia
   20472
   USA

  1-877-336-2627
  miphelp@riskmapcds.com


Original data development environment may vary. Finishing of the data is done using Esri's ArcGIS software. The submitted personal geodatabase was created using ArcGIS version 10.3.1.


  Federal Emergency Management Agency
  20190801
  Flood Insurance Rate Map, DuPage County, USA
  map

   Washington, DC
   Federal Emergency Management Agency

  http://www.msc.fema.gov/




  Federal Emergency Management Agency
  20190801
  Flood Insurance Study, DuPage County, USA
  document

   Washington, DC
   Federal Emergency Management Agency

  http://www.msc.fema.gov/




  Federal Emergency Management Agency
  20190801
  Digital Flood Insurance Rate Map, DuPage County, USA
  raster and vector digital data

   Washington, DC
   Federal Emergency Management Agency

  http://www.msc.fema.gov/





 The DFIRM Database consists of countywide vector files and associated attributes produced in conjunction with the hardcopy FEMA FIRMs. The published effective FIRM and DFIRM are issued as the official designation of the SFHAs. As such, they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs and flood mapping process that produces these data are available in the Guidelines and Specifications for Flood Hazard Mapping Partners. Attribute accuracy was tested by manual comparison of source graphics with hardcopy plots and a symbolized display on an interactive computer graphic system.
 Independent quality control testing of FEMA's DFIRM database was also performed.
 To obtain more detailed information in areas where Base Flood Elevations (BFEs) and/or floodways have been determined, users are encouraged to consult the Flood Profiles and Floodway Data and/or Summary of Stillwater Elevations tables contained within the FIS report that accompanies this DFIRM database. Users should be aware that BFEs shown in the S_BFE table represent rounded whole-foot elevations. These BFEs are intended for flood insurance rating purposes only and should not be used as the sole source of flood elevation information. Accordingly, flood elevation data presented in the FIS report should be used in conjunction with the FIRM for purposes of construction and/or floodplain management. The 1-percent-annual-chance water-surface elevations shown in the S_XS table match the regulatory elevations shown in the FIS report.

When FEMA revises an FIS, adjacent studies are checked to ensure agreement between flood elevations at the boundaries of the studies. Likewise, flood elevations at the confluence of streams studied independently are checked to ensure agreement at the confluence. The FIRM and the FIS are developed together and care is taken to ensure that the elevations and other features shown on the flood profiles in the FIS agree with the information shown on the FIRM. However, the elevations as shown on the FIRM are rounded whole-foot elevations. They must be shown so that a profile recreated from the elevations on the FIRM will match the FIS profiles within one half of one foot.
The data contained in the DFIRM Database files reflect the content of the source materials. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. With new mapping, FEMA plans to maintain full detail in the spatial data it produces. However, older information is often transferred from existing maps where some generalization has taken place.
Flood risk data are developed for communities participating in the NFIP for use in insurance rating and for floodplain management. Flood hazard areas are determined using statistical analyses of records of river flow, storm tides, and rainfall, information obtained through consultation with the communities, floodplain topographic surveys, and hydrological and hydraulic analysis. Both detailed and approximate analyses are employed. Generally, detailed analyses are used to generate flood risk data only for developed or developing areas of communities. For areas where little or no development is expected to occur, FEMA uses approximate analyses to generate flood risk data. Typically, only drainage areas that are greater than one square mile are studied.


  The DFIRM Database consists of countywide vector files and associated attributes produced in conjunction with the hard copy FEMA FIRMs. The published effective FIRM and DFIRM maps are issued as the official designation of the SFHAs. As such they are adopted by local communities and form the basis for administration of the NFIP. For these purposes they are authoritative. Provisions exist in the regulations for public review, appeals and corrections of the flood risk information shown to better match real world conditions. As with any engineering analysis of this type, variation from the estimated flood heights and floodplain boundaries is possible. Details of FEMA's requirements for the FISs