Frankfort is a city in Marshall County, Kansas, home to about 726 people across 1.0 square miles. Its ZIP code is 66427.
Mostly Frankfort
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| Nearest major airport | Kansas City International Airport (MCI)101 miles away |
|---|---|
| Closer regional airport | Manhattan Regional Airport (MHK)42 miles away |
| Nearest city of 250,000+ | Lincoln, NE75 miles away |
| Nearest city of 1 million+ | Dallas, TX479 miles away |
Straight-line distances from the center of Frankfort; 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.
Frankfort had 730 residents in the 2020 census, down 15% since 2000.
It’s the 252nd largest of 721 towns in Kansas by population.
Marshall County grew from 24,355 residents in 1900 to 10,038 in 2020.
Marshall County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 90°F in summer, and winter lows average 15°F. About 33.7 inches of rain and melted snow fall in a typical year, with about 16 inches of snow.
Source: NOAA 1991–2020 climate normals, Marysville, KS weather station (9 miles away).
3,861 jobs at 364 businesses in Marshall 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 Frankfort.
Nearest hospitals
Providers with an office here
| Specialist doctors | 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 Vermillion. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Frankfort ElemFrankfort | Pre-K–6 | 185 | Public | 5.8 mi |
| Frankfort HighFrankfort | 7–12 | 117 | Public | 5.8 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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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.