GroundworkOpen the map

Winnebago County growth

309 new homes permitted in 2025

Census Building Permits Survey, 2025

New homes permitted in Winnebago County

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

New housing units permitted in Winnebago County
PeriodNew homesIn single-family homes
Jan–Sep 2026168156
Jan–Sep 2025158158
2025309309
2024284248
2023171150
2022189160
2021172146
2020149112
2019250179
  • Sep 202614
  • Aug 202624
  • Jul 202631
  • Jun 202634
  • May 202610
  • Apr 202617
  • Mar 202631
  • Feb 202612
  • Jan 20265
  • Dec 202595
  • Nov 202516
  • Oct 202540

New homes permitted each month, Oct 2025 to Sep 2026

People in Winnebago County

  • Population283,674Census Population Estimates · July 1, 2025
  • Change since 2020−1,265 (−0.4%)July 1, 2020 to July 1, 2025 · Census Population Estimates
  • New homes per 1,000 residents1.12025 permits per 1,000 people on July 1, 2025 · Census
  • Median household income$65,8372020-2024 · Census ACS 5-year, ±$1,162

Jobs in Winnebago County

  • Jobs in the county125,716Annual average 2025, all industries, by place of work · BLS QCEW
  • Change since 2020+10,323 (+8.9%)2020 to 2025 annual averages · BLS QCEW
  • Average weekly wage$1,1792025, all industries · BLS QCEW

Home values in Winnebago County

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

  • Home prices, 1 year+8%2024 to 2025 · FHFA House Price Index
  • Home prices, 5 years+68%2020 to 2025 · FHFA House Price Index

Land in Winnebago County

Our own figures from the county roll and the county's recorded sales.

Recorded land sales by quarter in Winnebago County
QuarterLand salesMedian an acre, 1 acre or moreMedian lot, under 1 acre
Q3 202637Too few sales$9,450
Q2 202634$23,900$10,250
Q1 202628$20,000$17,000
Q4 202522$18,333$5,500

Growth in nearby counties

Boone CountyDeKalb County

More

Illinois growth by countyThe data (CSV, JSON)Winnebago 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.

Land

Groundwork's map of the county roll and the county's own recorded sales: the same figures, gates and dates as the county page.

Data edition

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