Federal Reserve Economic Data

Table Data - Population Estimate, Total (5-year estimate) in Carroll County, MD

Title Population Estimate, Total (5-year estimate) in Carroll County, MD
Series ID B03002001E024013
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 12:21 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 168964
2010-01-01 167208
2011-01-01 167277
2012-01-01 167249
2013-01-01 167261
2014-01-01 167399
2015-01-01 167444
2016-01-01 167535
2017-01-01 167319
2018-01-01 167522
2019-01-01 167699
2020-01-01 168233
2021-01-01 172148
2022-01-01 173225

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