Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Population over time
Nilwood had 201 residents in the 2020 census, down 29% since 2000.
It’s the 1269th largest of 1,450 towns in Illinois by population.
Macoupin County grew from 42,256 residents in 1900 to 44,967 in 2020.
Macoupin County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Weather by month
Average highs peak around 87°F in summer, and winter lows average 21°F. About 38.4 inches of rain and melted snow fall in a typical year, with about 16 inches of snow.
Source: NOAA 1991–2020 climate normals, Virden, IL weather station (8 miles away).
Jobs in Macoupin County
7,626 jobs at 813 businesses in Macoupin County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Health care
Nearest hospitals
Carlinville Area HospitalCritical access hospital · emergency room · CMS rating 2 of 5 · Carlinville8.2 miles
St. Francis HospitalCritical access hospital · emergency room · CMS rating 2 of 5 · Litchfield17.4 miles
Hillsboro Area HospitalCritical access hospital · emergency room · Hillsboro24.1 miles
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Places in and around Nilwood
Grocery stores
County Market4.0 mi
Libraries
Girard Township Library3.5 mi
Counts are within about 1 mile of the center of town.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.