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 (https://www.census.gov/content/dam/Census/library/publications/2018/acs/acs_general_handbook_2018.pdf) for a more thorough clarification.

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 (https://www.census.gov/content/dam/Census/library/publications/2018/acs/acs_general_handbook_2018.pdf) for a more thorough clarification.

For further information, please refer to the US Census Bureau's Annual Services release, online at http://www.census.gov/services/.

For further information, please refer to the US Census Bureau's Annual Services release, online at http://www.census.gov/services/.

Data for "Resident Population" are estimates as of July 1. Data for 1970, 1980, 1990, and 2000 are annual census. Population estimates are updated annually using current data on births, deaths, and migration to calculate population change since the most recent decennial census. The annual time series of estimates begins with the most recent decennial census data and extends to the vintage year. Each vintage of estimates includes all years since the most recent decennial census.

The Quarterly Survey of Public Pensions (QSPP) is a quarterly survey that provides national summary data on the revenues, expenditures, and composition of assets of the largest defined benefit public employee pension systems for state and local governments. Starting in the second quarter of 2019, the QSPP has adopted a new set of data items which provide more detail about the various asset categories of public pensions in the United States. For more details about the new series, see the press release (https://www.census.gov/library/publications/2019/econ/g19-qspp2.html).

The Quarterly Survey of Public Pensions (QSPP) is a quarterly survey that provides national summary data on the revenues, expenditures, and composition of assets of the largest defined benefit public employee pension systems for state and local governments. Starting in the second quarter of 2019, the QSPP has adopted a new set of data items which provide more detail about the various asset categories of public pensions in the United States. For more details about the new series, see the press release (https://www.census.gov/library/publications/2019/econ/g19-qspp2.html).

The Quarterly Survey of Public Pensions (QSPP) is a quarterly survey that provides national summary data on the revenues, expenditures, and composition of assets of the largest defined benefit public employee pension systems for state and local governments.