Federal Reserve Economic Data

Table Data - Population Estimate, Total (5-year estimate) in Louisa County, IA

Title Population Estimate, Total (5-year estimate) in Louisa County, IA
Series ID B03002001E019115
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 2023-01-01
Last Updated 2024-12-12 2:27 PM 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 11657
2010-01-01 11683
2011-01-01 11576
2012-01-01 11448
2013-01-01 11348
2014-01-01 11305
2015-01-01 11271
2016-01-01 11251
2017-01-01 11238
2018-01-01 11223
2019-01-01 11178
2020-01-01 11125
2021-01-01 10891
2022-01-01 10823
2023-01-01 10710

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