Federal Reserve Economic Data

Table Data - Population Estimate, Total, Not Hispanic or Latino (5-year estimate) in Polk County, IA

Title Population Estimate, Total, Not Hispanic or Latino (5-year estimate) in Polk County, IA
Series ID B03002002E019153
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 10:36 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 389147
2010-01-01 389792
2011-01-01 394400
2012-01-01 399332
2013-01-01 404570
2014-01-01 410301
2015-01-01 416433
2016-01-01 422477
2017-01-01 429298
2018-01-01 435188
2019-01-01 439447
2020-01-01 444192
2021-01-01 446280
2022-01-01 449436

Subscribe to the FRED newsletter


Follow us

Back to Top