Marshall County, KS ZIP codes
There are 11 ZIP codes in Marshall County, KS, in 11 towns, from 66403 to 66548. The largest are 66508 (Marysville), 66427 (Frankfort) and 66411 (Blue Rapids).
The county seat is Marysville.
- ZIP codes
- 11
- Towns
- 11
- County seat
- Marysville
- County FIPS
20117- State
- Kansas
- Population
- 9,993
- Median household income
- $68,419
- Land area
- 900 sq mi
Marshall County ZIP codes by town
- Marysville (county seat)
- 66508
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Marshall County ZIP codes
The ZIP codes of Marshall County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Marshall County in numbers
About 9,993 people live in Marshall County, in 4,176 households, the 39th most populous of Kansas's 105 counties. The median household income is $68,419 a year, 8% below the Kansas median of $74,275 (US: $80,734). The median owner-occupied home is valued at $127,700 (41% below the Kansas median), and median gross rent is $690 a month. The median age is 43.2; 19.1% of adults 25 and over hold a bachelor's degree or higher (35.6% across Kansas); the average commute takes 16 minutes.
| Population | 9,993 |
|---|---|
| Households | 4,176 |
| Median age | 43.2 |
| Median household income | $68,419 |
| Median home value | $127,700 |
| Median gross rent | $690 |
| Bachelor's degree or higher | 19.1% |
| Mean commute | 16.4 min |
| Population density | 11 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Marshall County
| Town | ZIP codes | Population |
|---|---|---|
| Marysville | 1 | 3,422 |
| Blue Rapids | 1 | 870 |
| Waterville | 1 | 748 |
| Frankfort | 1 | 726 |
| Axtell | 1 | 468 |
| Bremen | 1 | 192 |
| Beattie | 1 | 185 |
| Summerfield | 1 | 128 |
| Oketo | 1 | 109 |
| Home | 1 | 92 |
| Vermillion | 1 | 52 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Marshall County.
- Riley County (9)
- Pottawatomie County (10)
- Nemaha County (9)
- Washington County (11)
- Pawnee County, NE (6)
Not sure you are in Marshall County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Marshall County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
66403 | Axtell , KS | Standard | 801 | $71,875 | $252,300 |
66406 | Beattie , KS | Standard | 365 | $67,955 | — |
66411 | Blue Rapids , KS | Standard | 1,127 | $57,361 | $85,900 |
66412 | Bremen , KS | Standard | 644 | $86,638 | $179,200 |
66427 | Frankfort , KS | Standard | 1,334 | $79,481 | $133,600 |
66438 | Home , KS | Standard | 200 | $76,250 | $357,700 |
66508 | Marysville , KS | Standard | 3,987 | $55,636 | $135,400 |
66518 | Oketo , KS | Standard | 211 | — | $153,000 |
66541 | Summerfield , KS | Standard | 234 | $36,563 | $80,600 |
66544 | Vermillion , KS | Standard | 287 | $97,212 | $75,800 |
66548 | Waterville , KS | Standard | 975 | $70,568 | $89,800 |
Cite this page
zipcodes.pro. “Marshall County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ks/county/marshall
Underlying data is public domain or openly licensed — sources, vintages and licences.