ZIP Codes of Neosho County, KS

Population & People
Population & People
Total Population
15,701
Household Income
Household Income
Median Income
$60,314
Housing
Housing
Total Housing Units
7,246
Business & Economy
Business & Economy
Total Businesses
421
Employment
Employment
Employment Rate
60.54%
Education
Education
Bachelor's Degree+
24.31%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 6 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:6 ZIP Codes (6 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:620
Timezone:Central (GMT -06:00)
Local Time:2:12:14 PM
Population:15,701 [See All]
FIPS:20133
Land Area:576 sq mi
Water Area:5 sq mi
Coordinates:37.5576, -95.3109
Quick Link:
https://www.zip-codes.com/county/ks-neosho.asp
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Kansas's #33 most populous county
15,701 residents across 6 ZIPs — #33 of 106 Kansas counties.

Standout ZIPs in this County


Most Populous
Chanute · 10,631 people
67.7% of county total
Highest Income
Saint Paul · $70,625 median
1.2× county average
Largest Land Area
Chanute · 199.1 sq mi
Spans the most ground
Fastest Growth
Thayer · 27.0% (10-yr)
1,200 → 1,524 residents
Most Educated
Erie · 27.0% bachelor's+
395 of 1,462 adults 25+

Things worth knowing about Neosho County


15,701 residents live across 6 ZIPs covering 576 sq mi, served by 6 distinct USPS-recognized cities.

Population moved from 16,390 to 15,701 from 2014 to 2024 — a -4.2% change. 2 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 66771 (Saint Paul, $70,625 median) and poorest ZIP 66733 (Erie, $52,667) are 9.9 miles apart — a 1.3× income gap across local geography.

Median home values vary 2.3× across this county — from $93,700 in 66720 (Chanute) to $219,300 in 66740 (Galesburg).

Density varies across the county — from 6 people/sq mi in 66740 (Galesburg) to 53 in 66720 (Chanute).

Educational attainment ranges from 5.3% bachelor's+ in 66775 (Stark) to 28.2% in 66771 (Saint Paul) — the breadth of educational profiles across the area.

Within Kansas, this is the #33 most populous of 106 counties and ranks #86 for median household income .

Weighted by population, the typical household earns about $57,454 across the county — reflecting what a typical resident sees, not a simple ZIP average.

24.3% of adults age 25+ hold a bachelor's degree or higher (2,536 of 10,432 reporting).

6 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Neosho County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
576
square miles
Avg density
27.3
people per sq mi
Population
15,701
across 6 ZIPs
Chanute
199.1 sq mi
10,631 residents
Erie
143.2 sq mi
2,012 residents
Thayer
109.1 sq mi
1,524 residents

Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Chanute

All ZIP Codes in Neosho County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
66720ChanuteStandard10,631$56,911199.1-6.8%
66733ErieStandard2,012$52,667143.2-1.8%
66776ThayerStandard1,524$57,304109.127.0%
66771Saint PaulStandard1,074$70,62566.5-9.3%
66740GalesburgStandard23638.4-46.4%
66775StarkStandard224$64,06319.5105.5%

Adjacent & Nearby Counties