ZIP Codes of Dallas County, MO

Population & People
Population & People
Total Population
16,979
Household Income
Household Income
Median Income
$51,568
Housing
Housing
Total Housing Units
7,435
Business & Economy
Business & Economy
Total Businesses
246
Employment
Employment
Employment Rate
46.22%
Education
Education
Bachelor's Degree+
15.92%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 7 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:7 ZIP Codes (7 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:417
Timezone:Central (GMT -06:00)
Local Time:11:54:00 PM
Population:16,979 [See All]
FIPS:29059
CBSA:Springfield, MO
Land Area:542 sq mi
Water Area:2 sq mi
Coordinates:37.7016, -93.0401
Quick Link:
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Notable income spread
Median income ranges $26,936 to $71,527 across ZIPs — a 2.7× gap.

Standout ZIPs in this County


Most Populous
Buffalo · 8,695 people
51.2% of county total
Highest Income
Elkland · $71,527 median
1.4× county average
Largest Land Area
Buffalo · 153.8 sq mi
Spans the most ground
Fastest Growth
Long Lane · 77.8% (10-yr)
1,053 → 1,872 residents
Most Educated
Buffalo · 20.0% bachelor's+
1,264 of 6,308 adults 25+

Things worth knowing about Dallas County


16,979 residents live across 7 ZIPs covering 542 sq mi, served by 7 distinct USPS-recognized cities.

Population moved from 16,677 to 16,979 from 2014 to 2024 — a +1.8% change. 3 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 65644 (Elkland, $71,527 median) and poorest ZIP 65764 (Tunas, $26,936) are 20.8 miles apart — a 2.7× income gap across local geography.

Median home values vary 2.4× across this county — from $103,100 in 65764 (Tunas) to $249,100 in 65644 (Elkland).

Density varies across the county — from 8 people/sq mi in 65783 (Windyville) to 57 in 65622 (Buffalo).

Educational attainment ranges from 7.6% bachelor's+ in 65767 (Urbana) to 20.0% in 65622 (Buffalo) — the breadth of educational profiles across the area.

Within Missouri, this is the #61 most populous of 116 counties and ranks #98 for median household income .

Weighted by population, the typical household earns about $51,824 across the county — reflecting what a typical resident sees, not a simple ZIP average.

15.9% of adults age 25+ hold a bachelor's degree or higher (1,916 of 12,033 reporting).

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

Stories about Dallas 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
542
square miles
Avg density
31.3
people per sq mi
Population
16,979
across 7 ZIPs
Buffalo
153.8 sq mi
8,695 residents
Tunas
91.1 sq mi
1,449 residents
Urbana
84.7 sq mi
1,983 residents

All ZIP Codes in Dallas County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
65622BuffaloStandard8,695$50,081153.8-0.5%
65644ElklandStandard2,059$71,52782.0-18.7%
65767UrbanaStandard1,983$52,70884.710.4%
65590Long LaneStandard1,872$56,76277.677.8%
65764TunasStandard1,449$26,93691.1-16.4%
65685LouisburgStandard794$51,39436.920.5%
65783WindyvilleStandard12716.2-23.0%

Adjacent & Nearby Counties