ZIP Codes of Barton County, MO

Population & People
Population & People
Total Population
12,539
Household Income
Household Income
Median Income
$57,236
Housing
Housing
Total Housing Units
5,587
Business & Economy
Business & Economy
Total Businesses
241
Employment
Employment
Employment Rate
53.45%
Education
Education
Bachelor's Degree+
16.87%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 6 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:6 ZIP Codes (5 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:417
Timezone:Central (GMT -06:00)
Local Time:11:53:58 PM
Population:12,539 [See All]
FIPS:29011
Land Area:618 sq mi
Water Area:5 sq mi
Coordinates:37.4479, -94.3879
Quick Link:
https://www.zip-codes.com/county/mo-barton.asp
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Notable income spread
Median income ranges $27,813 to $98,750 across ZIPs — a 3.6× gap.

Standout ZIPs in this County


Most Populous
Lamar · 8,310 people
66.3% of county total
Highest Income
Asbury · $98,750 median
1.7× county average
Largest Land Area
Lamar · 268.5 sq mi
Spans the most ground
Fastest Growth
Lamar · -3.1% (10-yr)
8,574 → 8,310 residents
Most Educated
Liberal · 18.8% bachelor's+
191 of 1,015 adults 25+

Things worth knowing about Barton County


12,539 residents live across 6 ZIPs covering 618 sq mi, served by 6 distinct USPS-recognized cities.

Population moved from 12,510 to 12,539 from 2014 to 2024 — a +0.2% change. 1 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 64832 (Asbury, $98,750 median) and poorest ZIP 64769 (Mindenmines, $27,813) are 10.8 miles apart — a 3.6× income gap across local geography.

Median home values vary 3.9× across this county — from $49,100 in 64769 (Mindenmines) to $189,100 in 64832 (Asbury).

Density varies across the county — from 10 people/sq mi in 64769 (Mindenmines) to 31 in 64759 (Lamar).

Educational attainment ranges from 10.6% bachelor's+ in 64748 (Golden City) to 18.8% in 64762 (Liberal) — the breadth of educational profiles across the area.

Within Missouri, this is the #73 most populous of 116 counties and ranks #80 for median household income .

Weighted by population, the typical household earns about $55,226 across the county — reflecting what a typical resident sees, not a simple ZIP average.

16.9% of adults age 25+ hold a bachelor's degree or higher (1,463 of 8,671 reporting).

5 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Barton County


Two counties in one

Median household income spans 3.6× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.

Wealthiest ZIP
Asbury
Median income: $98,750
Population: 1,286
Bachelor's+: 18.1%
vs
Poorest ZIP (pop >= 500)
Mindenmines
Median income: $27,813
Population: 459
Bachelor's+: 12.4%
For every $1 of household income in 64769, the typical household in 64832 earns $3.55.

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
618
square miles
Avg density
20.3
people per sq mi
Population
12,539
across 6 ZIPs
Lamar
268.5 sq mi
8,310 residents
Liberal
126.2 sq mi
1,379 residents
Golden City
108.5 sq mi
1,105 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.

Lamar

All ZIP Codes in Barton County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
64759LamarStandard8,310$50,000268.5-3.1%
64762LiberalStandard1,379$58,750126.2-7.8%
64832AsburyStandard1,286$98,75068.685.6%
64748Golden CityStandard1,105$50,865108.5-11.3%
64769MindenminesStandard459$27,81345.9-8.6%
64766MilfordPO Box0.0

Adjacent & Nearby Counties