The land area of Polk County, IA was 574 in 2017.

Land Area

Water Area

Land area is a measurement providing the size, in square miles, of the land portions of geographic entities for which the Census Bureau tabulates and disseminates data. Area is calculated from the specific boundary recorded for each entity in the Census Bureau's geographic database. Land area is based on current information in the TIGER® data base, calculated for use with Census 2010.

Water Area figures include inland, coastal, Great Lakes, and territorial sea water. Inland water consists of any lake, reservoir, pond, or similar body of water that is recorded in the Census Bureau's geographic database. It also includes any river, creek, canal, stream, or similar feature that is recorded in that database as a two- dimensional feature (rather than as a single line). The portions of the oceans and related large embayments (such as Chesapeake Bay and Puget Sound), the Gulf of Mexico, and the Caribbean Sea that belong to the United States and its territories are classified as coastal and territorial waters; the Great Lakes are treated as a separate water entity. Rivers and bays that empty into these bodies of water are treated as inland water from the point beyond which they are narrower than 1 nautical mile across. Identification of land and inland, coastal, territorial, and Great Lakes waters is for data presentation purposes only and does not necessarily reflect their legal definitions.

Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API - Notes:

1. ODN datasets and APIs are subject to change and may differ in format from the original source data in order to provide a user-friendly experience on this site.

2. To build your own apps using this data, see the ODN Dataset and API links.

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Geographic and Area Datasets Involving Polk County, IA

  • API

    County Population in Iowa by Year

    mydata.iowa.gov | Last Updated 2019-06-07T20:40:40.000Z

    This dataset contains county population in Iowa from 1990 to the most current year available. Data from 1990, 2000, and 2010 comes from the decennial censuses while the years in between are produced annually.

  • API

    City Population in Iowa by County and Year

    mydata.iowa.gov | Last Updated 2019-06-07T20:41:12.000Z

    This dataset contains city population in Iowa from 2010 to the most current year available. Data from 2010 comes from the decennial census while the proceeding years are produced annually. Aggregating the city populations in each county will provide a county total population

  • API

    Iowa Local Area Unemployment Statistics

    mydata.iowa.gov | Last Updated 2019-06-07T20:24:53.000Z

    This dataset contains employment, unemployment, labor force, and labor force participation rates for Iowa, the counties, cities, and metropolitan statistical areas.

  • API

    Iowa Fleet Summary By Year, County And Vehicle Type

    mydata.iowa.gov | Last Updated 2019-06-07T20:40:34.000Z

    The dataset provides vehicle (both motor vehicle and trailer) registration numbers and annual fees in Iowa by year, county and vehicle types. Vehicle types include: Automobile, Bus, Moped, Motor Home - A, Motor Home - B, Motor Home - C, Motorcycle, Multi-purpose, Regular Trailer, Semi Trailer, Small Regular Trailer, Small Semi Trailer, Truck Tractor, Travel Trailer, Truck, Truck - Business Trade, and Truck - Weight and List.

  • API

    Iowa Fire Department Census

    data.iowa.gov | Last Updated 2019-06-07T20:10:34.000Z

    This dataset is a subset of the National Fire Department Census which provides an address listing of U.S. fire departments registered with U.S. Fire Administration (USFA) as well as some basic information about each fire department. The purpose of the census is to create a national database for use by the fire protection and prevention communities, allied professions, the general public and the U.S. Fire Administration (USFA). USFA uses the database to conduct special studies, guide program decisionmaking, and to improve direct communication with individual fire departments.

  • API

    Licensed Viatical Brokers in Iowa

    data.iowa.gov | Last Updated 2019-06-07T20:10:33.000Z

    This dataset is a listing of viatical brokers that are licensed to do business in Iowa.

  • API

    County Budgeted Expenditures By Service Area By Fiscal Year

    mydata.iowa.gov | Last Updated 2019-06-13T12:59:33.000Z

    This dataset provides budgeted expenditures for the counties within the State of Iowa beginning with FY 2005 (fiscal year ending 6/30/2005).

  • API

    Licensed Viatical Settlement Providers in Iowa

    data.iowa.gov | Last Updated 2019-06-07T20:10:26.000Z

    This dataset is a listing of viatical settlement providers licensed in the State of Iowa.

  • API

    Iowa Medicaid Payments & Recipients by Month and County

    mydata.iowa.gov | Last Updated 2019-06-12T21:56:58.000Z

    This dataset contains aggregate Medicaid payments, and counts for eligible recipients and recipients served by month and county in Iowa, starting with month ending 1/31/2011. Eligibility groups are a category of people who meet certain common eligibility requirements. Some Medicaid eligibility groups cover additional services, such as nursing facility care and care received in the home. Others have higher income and resource limits, charge a premium, only pay the Medicare premium or cover only expenses also paid by Medicare, or require the recipient to pay a specific dollar amount of their medical expenses. Eligible Medicaid recipients may be considered medically needy if their medical costs are so high that they use up most of their income. Those considered medically needy are responsible for paying some of their medical expenses. This is called meeting a spend down. Then Medicaid would start to pay for the rest. Think of the spend down like a deductible that people pay as part of a private insurance plan.

  • API

    State of Iowa - Monthly Voter Registration Totals by County

    mydata.iowa.gov | Last Updated 2019-06-13T15:09:55.000Z

    This dataset contains voter registration data in Iowa by month and county starting with January 2000. It identifies the number of voters registered as Democrats, Republicans, other party or no party. Libertarians were reported separately March 2017 through January 2019. The dataset also identifies the number of active and inactive voter registrations. Inactive voters are those to whom official mailings have been sent from the county auditor’s office, the notice was returned as undeliverable by the United States Postal Service and the voter has not responded to a follow up confirmation notice. [§48A.37]