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Winnebago County, IL

Pick an industry to see how saturated it is across Winnebago County's ZIP codes, compared with the U.S. average. All figures use Census ZBP 2023 + ACS 2024.

Bars

67–95 in Winnebago County
195–242%
of U.S. average High density

Fast food

242–260 in Winnebago County
107–109%
of U.S. average Above average

Gyms

35–71 in Winnebago County
100–169%
of U.S. average Range spans bands

Restaurants

212–230 in Winnebago County
98–100%
of U.S. average Range spans bands

Clothing stores

22–66 in Winnebago County
94–230%
of U.S. average Range spans bands

Dentists

97–133 in Winnebago County
85–106%
of U.S. average Range spans bands

Grocery stores

42–78 in Winnebago County
79–125%
of U.S. average Range spans bands

Auto repair

22–62 in Winnebago County
75–170%
of U.S. average Range spans bands

Pet care

14–56 in Winnebago County
65–205%
of U.S. average Range spans bands

Pharmacies

16–58 in Winnebago County
46–131%
of U.S. average Range spans bands

Coffee shops

32–68 in Winnebago County
45–78%
of U.S. average Range spans bands

Beauty salons

31–67 in Winnebago County
44–78%
of U.S. average Range spans bands

Car washes

7–53 in Winnebago County
42–246%
of U.S. average Range spans bands

Convenience stores

11–55 in Winnebago County
35–138%
of U.S. average Range spans bands

Day care

19–59 in Winnebago County
28–68%
of U.S. average Range spans bands

Nail salons

3–51 in Winnebago County
10–135%
of U.S. average Range spans bands

Population, migration, and jobs

Population
283,790
Census PEP, July 1 2024
Change since 2020
−0.4%
−1,173 people
Net migration 2024
+1,609
international +1,697, domestic −88
Jobs located here
119,567
LODES 2022, −3.1% since 2019
Employed residents
127,312
LODES 2022, −4.3% since 2019
Net movers (IRS)
−950
tax year 2021–2022: 9,682 in, 10,632 out

Population. Census estimates 283,790 residents on July 1, 2024, 0.4% below 2020 (−1,173).

Latest year (2023→2024): births minus deaths −32, international migration +1,697, domestic migration −88. These are model-based estimates built from births, deaths, and migration, revised annually — not a census count, and they can differ from the ACS 5-year figure used elsewhere on the site. Components may not sum exactly because of rounding.

Jobs. LODES counts 119,567 jobs located in the county in 2022 (−3.1% since 2019) and 127,312 employed residents (−4.3% since 2019). A job and a worker are not the same thing: the first is measured at the workplace, the second at the home address, and one person can hold two jobs. Self-employed, military, and informal work are excluded.

Where movers come from and go. IRS matched individual tax returns between 2021 and 2022. 9,682 people (exemptions) moved into Winnebago County, reporting $273.3M in adjusted gross income; 10,632 moved out, reporting $381.3M. Net: −950 people.

Largest sources: Cook, IL (1,322) · Boone, IL (1,126) · Rock, WI (764). Largest destinations: Boone, IL (969) · Cook, IL (813) · Rock, WI (712).

People are exemptions on matched returns — not a population estimate. Non-filers, dependents claimed elsewhere, and people whose address did not change are treated differently than in Census estimates. Tax data lag about two years.

Each source is reported at its own geography and year. None of them measures demand for a specific business type; they describe whether the local customer base and job base are expanding or shrinking. Definitions and limits →

How to read these numbers

Each percentage is the county's density of that business type per 10,000 people present (residents + 0.5×workers), divided by the U.S. average. 100% = exactly average.

Density is a supply-side signal. It does not measure foot traffic, income, tourism, or whether locals actually want more of a given business.

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BizGapMap — free, no-login small-business saturation reports for major U.S. counties. Built entirely from public U.S. Census, BLS, and IRS data (ZBP 2023, ACS 2024 5-year, PEP 2024, LODES, QCEW, IRS SOI). No forecasts, no revenue guesses — withheld cells are marked, and the few derived counts are labelled as estimates.