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Williamson County growth

1,621 new homes permitted in 2025

Census Building Permits Survey, 2025

New homes permitted in Williamson County

Housing units the county's permit offices authorized, by year, from the Census Bureau.

New housing units permitted in Williamson County
PeriodNew homesIn single-family homes
Jan–Sep 20261,2211,008
Jan–Sep 20251,003976
20251,6211,286
20241,9941,357
20231,4321,370
20222,2541,679
20212,9802,073
20202,2841,769
20192,4671,798
  • Sep 2026135
  • Aug 2026250
  • Jul 2026170
  • Jun 2026113
  • May 2026159
  • Apr 202692
  • Mar 2026120
  • Feb 2026101
  • Jan 202681
  • Dec 2025112
  • Nov 2025413
  • Oct 202593

New homes permitted each month, Oct 2025 to Sep 2026

People in Williamson County

  • Population272,061Census Population Estimates · July 1, 2025
  • Change since 2020+22,447 (+9.0%)July 1, 2020 to July 1, 2025 · Census Population Estimates
  • New homes per 1,000 residents6.02025 permits per 1,000 people on July 1, 2025 · Census
  • Median household income$135,5942020-2024 · Census ACS 5-year, ±$4,044

Jobs in Williamson County

  • Jobs in the county151,470Annual average 2025, all industries, by place of work · BLS QCEW
  • Change since 2020+16,339 (+12.1%)2020 to 2025 annual averages · BLS QCEW
  • Average weekly wage$1,7392025, all industries · BLS QCEW

Home values in Williamson County

Change in the price of homes sold or refinanced more than once (the FHFA repeat-sales index).

  • Home prices, 1 year+3%2024 to 2025 · FHFA House Price Index
  • Home prices, 5 years+69%2020 to 2025 · FHFA House Price Index

Growth in nearby counties

Cheatham CountyDavidson CountyDickson CountyHickman CountyMarshall CountyMaury CountyRutherford County

More

Tennessee growth by countyThe data (CSV, JSON)Williamson County overview

About these numbersSources, dates and how these figures are built

New homes

U.S. Census Bureau, Building Permits Survey, 2019-01 to 2026-09; annual files 2019-2025, posted May 14, 2026; the monthly files through Sep 2026, posted Oct 27, 2026. New housing units authorized by building permits, reported plus imputed. A month is the figure in that month's file; a year is the annual file, which adds late and corrected reports, so twelve months need not add up to the year. Public domain.

People

U.S. Census Bureau, Population Estimates Program, Vintage 2025, July 1, 2020 to July 1, 2025, posted Mar 26, 2026. Public domain.

Income

U.S. Census Bureau, American Community Survey 2020-2024 5-year, table B19013, 2020-2024 (2024 dollars), posted Jan 29, 2026. Median household income; printed at a coefficient of variation of 30% or less. Public domain.

Jobs

U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2020-2025 annual averages, posted Aug 21, 2026. All industries, all ownerships, jobs covered by unemployment insurance; place of work. Public domain.

Home values

FHFA House Price Index (all-transactions), annual county and five-digit ZIP indexes, 2025, posted Mar 31, 2026. Public domain.

Data edition

Figures as of Oct 27, 2026. Area figures, not any one parcel's.