ZIP Codes of Daviess County, MO

Population & People
Population & People
Total Population
8,265
Household Income
Household Income
Median Income
$63,435
Housing
Housing
Total Housing Units
4,015
Business & Economy
Business & Economy
Total Businesses
163
Employment
Employment
Employment Rate
57.42%
Education
Education
Bachelor's Degree+
18.43%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 8 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:8 ZIP Codes (7 Standard, 1 PO Box, 0 Unique) [See All]
Area Codes:660 / 816 / 975
Timezone:Central (GMT -06:00)
Local Time:2:12:42 PM
Population:8,265 [See All]
FIPS:29061
Land Area:512 sq mi
Water Area:5 sq mi
Coordinates:39.9750, -93.9831
Quick Link:
https://www.zip-codes.com/county/mo-daviess.asp
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Missouri's #93 most populous county
8,265 residents across 8 ZIPs — #93 of 116 Missouri counties.

Standout ZIPs in this County


Most Populous
Gallatin · 3,125 people
37.8% of county total
Highest Income
Jamesport · $74,821 median
1.2× county average
Largest Land Area
Gallatin · 137.0 sq mi
Spans the most ground
Fastest Growth
Jamesport · 1.9% (10-yr)
2,352 → 2,396 residents
Most Educated
Gallatin · 22.3% bachelor's+
510 of 2,285 adults 25+

Things worth knowing about Daviess County


8,265 residents live across 8 ZIPs covering 512 sq mi, served by 8 distinct USPS-recognized cities.

Population moved from 8,520 to 8,265 from 2014 to 2024 — a -3.0% change. 3 ZIPs gained residents, 5 lost.

The county's wealthiest ZIP 64648 (Jamesport, $74,821 median) and poorest ZIP 64636 (Coffey, $34,167) are 15.9 miles apart — a 2.2× income gap across local geography.

Median home values vary 2.3× across this county — from $107,900 in 64648 (Jamesport) to $243,800 in 64620 (Altamont).

Density varies across the county — from 8 people/sq mi in 64670 (Pattonsburg) to 30 in 64620 (Altamont).

Educational attainment ranges from 7.8% bachelor's+ in 64648 (Jamesport) to 29.2% in 64647 (Jameson) — the breadth of educational profiles across the area.

Within Missouri, this is the #93 most populous of 116 counties and ranks #46 for median household income .

Weighted by population, the typical household earns about $64,127 across the county — reflecting what a typical resident sees, not a simple ZIP average.

18.4% of adults age 25+ hold a bachelor's degree or higher (1,004 of 5,449 reporting).

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

Stories about Daviess 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
512
square miles
Avg density
16.2
people per sq mi
Population
8,265
across 8 ZIPs
Gallatin
137.0 sq mi
3,125 residents
Pattonsburg
128.4 sq mi
1,007 residents
Jamesport
119.6 sq mi
2,396 residents

All ZIP Codes in Daviess County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
64640GallatinStandard3,125$61,302137.00.0%
64648JamesportStandard2,396$74,821119.61.9%
64670PattonsburgStandard1,007$52,083128.4-16.7%
64620AltamontStandard626$74,46421.221.6%
64647JamesonStandard423$51,25051.614.6%
64689WinstonStandard422$62,20632.5-20.4%
64636CoffeyStandard217$34,16721.2-40.4%
64654Lock SpringsPO Box49$97,1880.0-10.9%

Adjacent & Nearby Counties