Town guide

Assumption, Illinois

Assumption is a city in Christian County, Illinois, home to about 1,205 people across 1.0 square miles. Its ZIP code is 62510.

Homes sold for a median of $90 per square foot in the three months ending August 2026, a balanced market.

Population1,2051,217 per sq mi
Median home value$89,700Census, as estimated by owners
Price per sq ft$90Sold homes, 3 months to August 2026
Sold over asking33%Latest 3 months

ZIP codes in Assumption

1 ZIP code

Each card is that ZIP code’s whole market, including any part outside Assumption. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology

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Around Assumption

Distances

Nearest major airportSt. Louis Lambert International Airport (STL)89 miles away
Closer regional airportDecatur Airport (DEC)24 miles away
Nearest city of 250,000+St. Louis, MO88 miles away
Nearest city of 1 million+Chicago, IL176 miles away

Straight-line distances from the center of Assumption; driving is longer.

Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.

Who represents Assumption

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

Assumption had 1,155 residents in the 2020 census, down 8% since 2000.

It’s the 650th largest of 1,450 towns in Illinois by population.

Christian County grew from 32,790 residents in 1900 to 34,032 in 2020.

Assumption population by census2000: 1,261, 2010: 1,168, 2020: 1,1551,26120001,16820101,1552020

Christian County, 1900–2020

Christian County population, 1900 to 20201900: 32,790, 1910: 34,594, 1920: 38,458, 1930: 37,538, 1940: 38,564, 1950: 38,816, 1960: 37,207, 1970: 35,948, 1980: 36,446, 1990: 34,418, 2000: 35,372, 2010: 34,800, 2020: 34,03233K’00’1038K’20’3039K’40’5037K’60’7036K’80’9035K’00’1034K’20

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 19°F. About 42.5 inches of rain and melted snow fall in a typical year, with about 15 inches of snow.

Average high and low temperature and precipitation by month near AssumptionJan: high 37°F, low 19°F, 2.8 in; Feb: high 42°F, low 23°F, 2.2 in; Mar: high 53°F, low 31°F, 3 in; Apr: high 66°F, low 41°F, 4.8 in; May: high 76°F, low 52°F, 4.8 in; Jun: high 84°F, low 62°F, 5.1 in; Jul: high 87°F, low 65°F, 4 in; Aug: high 86°F, low 63°F, 3 in; Sep: high 81°F, low 55°F, 3.3 in; Oct: high 68°F, low 44°F, 3.5 in; Nov: high 53°F, low 33°F, 3.7 in; Dec: high 42°F, low 25°F, 2.3 in37°19°Jan2.842°23°Feb2.253°31°Mar3.066°41°Apr4.876°52°May4.884°62°Jun5.187°65°Jul4.086°63°Aug3.081°55°Sep3.368°44°Oct3.553°33°Nov3.742°25°Dec2.3Rain and melted snow, inches

Source: NOAA 1991–2020 climate normals, Pana, IL weather station (10 miles away).

Jobs in Christian County

7,410 jobs at 709 businesses in Christian County. The biggest industries by employees:

Largest industries in Christian CountyHealth care and social assistance: 1,439 jobs; Retail trade: 1,331 jobs; Hotels and restaurants: 929 jobs; Manufacturing: 834 jobs; Wholesale trade: 539 jobs; Other services: 477 jobs; Construction: 342 jobs; Company headquarters: 325 jobsHealth care and social assistance 19% Retail trade 18% Hotels and restaurants 13% Manufacturing 11% Wholesale trade 7% Other services 6% Construction 5% Company headquarters 4%

Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).

Health care

1 doctors and other health care providers list an office in Assumption.

Nearest hospitals

  • Pana Community HospitalCritical access hospital · emergency room · CMS rating 4 of 5 · Pana9.2 miles
  • Taylorville Memorial HospitalCritical access hospital · emergency room · CMS rating 2 of 5 · Taylorville13.9 miles
  • Hshs Good Shepherd Hospital INCCritical access hospital · emergency room · Shelbyville14.3 miles

Providers with an office here

Mental health providers1
Pharmacies1

Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.

Places in and around Assumption

Libraries (1 nearby)

  • Assumption Public Library District0.9 mi

Counts are within about 1 mile of the center of town.

Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.

Schools in Assumption

Public schools here are run by Central A & M CUD 21. Check each district’s attendance zones for a specific address.

Public schools (3)
SchoolGradesStudentsTypeDistance
Bond PrimaryAssumptionPre-K–1154Public0.4 mi
Central A & M Middle SchoolAssumption6–8177Public0.4 mi
Kemmerer Village SchoolAssumption6–12—Alternative Education2.1 mi
Private schools (1)
SchoolGradesStudentsAffiliationDistance
Kemmerer Village SchoolAssumption6–1119Nonsectarian2.1 mi

Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.

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Towns near Assumption

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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.