Calvin is a town in Hughes County, Oklahoma, home to about 353 people across 0.9 square miles. Its ZIP code is 74531.
Mostly Calvin; also Gerty
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| Nearest major airport | OKC Will Rogers World Airport (OKC)83 miles away |
|---|---|
| Nearest city of 250,000+ | Oklahoma City, OK81 miles away |
| Nearest city of 1 million+ | Dallas, TX147 miles away |
Straight-line distances from the center of Calvin; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Calvin had 309 residents in the 2020 census, up 11% since 2000.
It’s the 425th largest of 827 towns in Oklahoma by population.
Hughes County grew from 24,040 residents in 1910 to 13,367 in 2020.
Hughes County, 1910–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 95°F in summer, and winter lows average 26°F. About 41.5 inches of rain and melted snow fall in a typical year, with about 2 inches of snow.
Source: NOAA 1991–2020 climate normals, Holdenville 2sse, OK weather station (14 miles away).
2,199 jobs at 196 businesses in Hughes County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Calvin.
Nearest hospitals
Providers with an office here
| Mental health providers | 1 |
|---|
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.
Public schools here are run by Calvin. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Calvin EsCalvin | Pre-K–8 | 126 | Public | 6.2 mi |
| Calvin HsCalvin | 9–12 | 42 | Public | 6.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Gerty.
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.