Title: Single-Parent Households with Children as a Percentage of Households with Children (5-year estimate) in Calvert County, MD Series ID: S1101SPHOUSE024009 Source: U.S. Census Bureau Release: Single Parent Households with Children (Not a Press Release) Seasonal Adjustment: Not Seasonally Adjusted Frequency: Annual Units: Percent Date Range: 2009-01-01 to 2022-01-01 Last Updated: 2023-12-07 11:20 AM CST Notes: The single-parent household rate is calculated as the sum of male and female single-parent households with their own children who are younger than 18-years of age divided by total households with their own children who are younger than 18-years of age (ACS 5-year variables S1101_C03_005E, S1101_C04_005E, and S1101_C01_005E respectively from table S1101). 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 (https://www.census.gov/content/dam/Census/library/publications/2018/acs/acs_general_handbook_2018.pdf) for a more thorough clarification. DATE VALUE 2009-01-01 20.787012528674783 2010-01-01 20.466754733597533 2011-01-01 19.887630428966380 2012-01-01 21.930459978268743 2013-01-01 22.540794689775975 2014-01-01 25.881357525618125 2015-01-01 27.358490566037734 2016-01-01 27.804447927892620 2017-01-01 26.360577874529984 2018-01-01 26.910134600158354 2019-01-01 23.991757433029143 2020-01-01 21.703853955375255 2021-01-01 21.745084613127260 2022-01-01 20.135703363914374