The Maricopa County Assessor static parcel maps are made available as zipped PDF files. Map IDs are broken down as Township & Range - Section - Quarter Section - Quarter Quarter. For example 807-18-04-00 would be: 807 -- Township 3 North, Range 4 East 18 -- Section 18 04 -- The SouthEast Quarter 00 -- There are no separate quarter quarter maps. MapIDs are only generated where parcels exist with Maricopa County. Last update of a MapID is indicated by the BEGIN_DATE field.

Assessor Book Boundaries are the aggregated boundaries of the first three digits of an Assessor Parcel Number (APN).

SOURCE

This data was obtained from the Maricopa County Assessor under the search "Fast Food". The query has approximately 1342 results, with only 1000 returned due MCA Data Policies.

DATA CLEANING

Due to some Subdivision Name values posessing unescaped commas that interfered with Pandas' ability to properly align the columns, some manual cleaning in Libre Office was performed by me.

Aside from a handful of Null values, the data is fairly clean and requires little from Pandas.

NULL VALUES

Here are the sums and percentage of NULLS in the dataframe. Interestingly, there are 17 NULLS that do not have any physical addresses. This amounts to 1.7% of values for the Address, City, and Zip, and are all corresponding rows for those missing values.

I have looked into a couple of these on the Maricopa County Assessor's GIS Portal, and they do not appear to have any assigned physical addresses. This is a good avenue of exploration for EDA. Possibly an error that could be corrected, or some obscure legal reason, but interesting nonetheless.

Additionally, there are 391 NULLS in Subdivision Name accounting for 39.1%. This is a feature that I am interested in exploring to determine if there are any predominant groups. It could also generate a list of Entities that can be searched later to see if the dataset can be enriched beyond it's initial 1,000 record limit.

There are 348 NULLS in the MCR column. This is the definition according to the MCA Glossary

MCR (MARICOPA COUNTY RECORDER NUMBER)
Often associated with recorded plat maps.

This seems to be an uninteresting nominal value, so I will drop this columns.

While Property Type and Rental have no NULLS, 100% of those values are Fast Food Restaurant and N (for No), and therefore offer no useful information, and will be dropped.

I will leave the S/T/R column, although it also seems to be uninteresting nominal values, I am curious if there are predominent groups, and since it also has no NULLS, might be useful for further data enrichment.

This dataset contain the parcels from the Maricopa County Assessor's office. The area covered is in Maricopa County (Phoenix metro area), Arizona. Major cities include Phoenix, Scottsdale, Mesa and Tempe. Various types of property usage are depicted in this layer. The most common are residential, commercial, industrial and agricultural properties. Multiple sources were used to collect the information including but not limited to CAD packages, aerial photography, and digitizing from paper maps. Adjustments are made where necessary in the process of updating and some parcel lines are only approximate. In cases where a line adjustment might create a loss of landsize it is typically taken out from the right of way to minimize the loss of landsize in the property. The line symbology for different property lines are not available in this dataset. In addition to standard fields the data has unique assessor parcel number for identification, basic temporal information and the location of property.

These Land Use coverages were created as a joint effort of MAG (Maricopa Association of Governments) and MAG member agency staff. Land Use components were classified into 24 to 46 categories. The Land Use coverages were used for a variety of planning purposes including socioeconomic forecasting and air quality modeling.

REQUIRED: A brief narrative summary of the data set.

Cross sections as approved by the Federal Emergency management Agency (FEMA) for the Flood Insurance Rate Maps (FIRM)

Profile baselines as approved by the Federal Emergency Management Agency (FEMA) for the Flood Insurance Rate Maps (FIRM)

This is the digitized version of a map of the Hohokam canal system in what is now the Phoenix metropolitan area. It is based on the thesis research by J. B. Howard "Paleohydraulics: Techniques for modeling the operation and growth of prehistoric canal systems"

Recorded subdivision boundaries for Maricopa County. Includes the Maricopa County Recorder (MCR) number and subdivision name.

Floodplain zones as approved by the Federal Emergency Management Agency (FEMA) for the Flood Insurance Rate Maps (FIRM). Differentiated according to the FEMA letter coding scheme.

The elementary school district dataset is intended to show all school districts within Maricopa County, Arizona. It is important to note the difference between Elementary School Districts, Unified School Districts and Union High School Districts. 1. When there is a Unified School District, the Elementary and High School District boundaries are the same and there is only one governing board.2. When there is a Union High School District, more than one individual Elementary School District feeds into that Union High School District. The governing board for the Union High School District and individual Elementary School Districts are separate.

Parcels are identified by an Assessor's Parcel Number (APN) consisting of a three digit Book number, a two digit Map number, a three digit Item number, possibly a Split letter. This dataset contains all active parcels within the area encompassed by Book Series 400. State and Federal lands are not represented. Vertical parcels are annotated using the Floor field.

The ZIP Codes feature class shows the USPS ZIP Code boundaries within Maricopa County, Arizona.

County Parcels data , can be used to search for parcels information. Data has been updated weekly with information from Maricopa County Accessor Office.

The address feature class is intended to show address locations in Maricopa County, Arizona.

Each voting precinct is used to summarize primary and general federal election voting results. In jurisdictional and presidential preference elections, voting precincts or parts of voting precincts are grouped together into consolidated precincts. In this dataset, there are 748 voting precincts which were approved by the Maricopa County Board of Supervisors on December 1st, 2017 and were initially used in the Spring 2018 elections. The last time these precincts were used was for the March 2022 jurisdictional election.

The Maricopa County, Arizona Justice Precinct Boundaries illustrate the county's 26 Justice Precincts. Each Justice Precinct has two elected officials; one Justice of the Peace and one Constable. The precincts were approved by the Maricopa County Board of Supervisors on March 9th, 2022 and will initially be used in the Fall 2022 elections. These Justice Precinct boundaries will be used for enforcement beginning January 1st, 2023. On January 1, 2024, the Downtown Justice Precinct is officially renamed El Centro Justice Precinct.

The centerlines feature class is intended to show current and future street centerlines in Maricopa County, Arizona.

The Fire District boundaries in Maricopa County, Arizona show the response areas for parcels of land which are not protected by a local town or city for fire or medical emergencies.