US Population Data release intercensal-2010-2020-r1

Source: U.S. Census Bureau, 2010-2020 Intercensal Subcounty Resident Population Estimates
(sub-est2020int.csv, released November 2024), https://www2.census.gov/programs-surveys/popest/datasets/2010-2020/intercensal/cities/sub-est2020int.csv
sha256 b2c63bc23d9a2de337b8c197d569b506fef10b372c8f6c46f7c23cba8284c09e. National totals: nc-est2020int-agesex-res.csv
(SEX=0, AGE=999), https://www2.census.gov/programs-surveys/popest/datasets/2010-2020/intercensal/national/asrh/nc-est2020int-agesex-res.csv, sha256 494672c99edd48ebc3f8052a0fdae54083ef7bc1467d9c5394de47cd8a1525e3. Retrieved 2026-10-29.

One row per geography. Columns: April 1, 2010 estimates base; July 1 annual intercensal estimates
2010-2019; April 1, 2020 census count. Blank cells are dates before a place existed. All boundaries are as of 2020 (Census file notes). This series is separate from the
Vintage 2025 series in pep-2025-r1, which uses 2025 boundaries and a revised April 2020 base. Do
not join the two series into one growth calculation without accounting for that difference.

Joined to site profiles by official code (states SUMLEV 040, counties 050, whole incorporated
places 162). Places with no population before incorporation have those dates omitted.
Connecticut planning regions have no series (they became county equivalents in 2022), and places
incorporated after 2020 have none. County totals reconcile to states and states/DC to the nation
for every observation.