Federal Reserve Economic Data

Table Data - Population Estimate, Total, Not Hispanic or Latino, Two or More Races, Two Races Excluding Some Other Race, and Three or More Races (5-year estimate) in Polk County, IA

Title Population Estimate, Total, Not Hispanic or Latino, Two or More Races, Two Races Excluding Some Other Race, and Three or More Races (5-year estimate) in Polk County, IA
Series ID B03002011E019153
Source U.S. Census Bureau
Release County Population Estimates By Race And Ethnicity (Not a Press Release)
Seasonal Adjustment Not Seasonally Adjusted
Frequency Annual
Units Persons
Date Range 2009-01-01 to 2022-01-01
Last Updated 2023-12-07 10:53 AM CST
Notes Data obtained from ACS Demographic and Housing Estimates, table DP05.

Multiyear estimates from the American Community Survey (ACS) are "period" estimates derived from a data sample collected over a period of time, as opposed to "point-in-time" estimates such as those from past decennial censuses. ACS 5-year estimate includes data collected over a 60-month period. The date of the data is the end of the 5-year period. For example, a value dated 2014 represents data from 2010 to 2014. However, they do not describe any specific day, month, or year within that time period.

Multiyear estimates require some considerations that single-year estimates do not. For example, multiyear estimates released in consecutive years consist mostly of overlapping years and shared data. The 2010-2014 ACS 5-year estimates share sample data from 2011 through 2014 with the 2011-2015 ACS 5-year estimates. Because of this overlap, users should use extreme caution in making comparisons with consecutive years of multiyear estimates.

Please see "Section 3: Understanding and Using ACS Single-Year and Multiyear Estimates" on publication page 13 (file page 19) of the 2018 ACS General Handbook for a more thorough clarification.
DATE VALUE
2009-01-01 6604
2010-01-01 7495
2011-01-01 7225
2012-01-01 8329
2013-01-01 8809
2014-01-01 8929
2015-01-01 9759
2016-01-01 10264
2017-01-01 10866
2018-01-01 11770
2019-01-01 11855
2020-01-01 11854
2021-01-01 12055
2022-01-01 13110

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