ZIP Codes of Putnam County, MO

Population & People
Population & People
Total Population
4,564
Household Income
Household Income
Median Income
$62,598
Housing
Housing
Total Housing Units
2,687
Business & Economy
Business & Economy
Total Businesses
84
Employment
Employment
Employment Rate
56.57%
Education
Education
Bachelor's Degree+
23.24%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:660
Timezone:Central (GMT -06:00)
Local Time:11:54:03 PM
Population:4,564 [See All]
FIPS:29171
Land Area:477 sq mi
Water Area:2 sq mi
Coordinates:40.4725, -92.9794
Quick Link:
https://www.zip-codes.com/county/mo-putnam.asp
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Missouri's #109 most populous county
4,564 residents across 5 ZIPs — #109 of 116 Missouri counties.

Standout ZIPs in this County


Most Populous
Unionville · 3,965 people
86.9% of county total
Highest Income
Livonia · $76,389 median
1.2× county average
Largest Land Area
Unionville · 274.2 sq mi
Spans the most ground
Fastest Growth
Unionville · 0.8% (10-yr)
3,934 → 3,965 residents
Most Educated
Unionville · 21.9% bachelor's+
612 of 2,792 adults 25+

Things worth knowing about Putnam County


4,564 residents live across 5 ZIPs covering 477 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 4,737 to 4,564 from 2014 to 2024 — a -3.7% change. 2 ZIPs gained residents, 2 lost (and 1 held flat).

The county's wealthiest ZIP 63551 (Livonia, $76,389 median) and poorest ZIP 64672 (Powersville, $43,250) are 28.2 miles apart — a 1.8× income gap across local geography.

Density varies 10× across the county — from 1 people/sq mi in 64655 (Lucerne) to 14 in 63565 (Unionville).

Educational attainment ranges from 21.9% bachelor's+ in 63565 (Unionville) to 45.0% in 64672 (Powersville) — the breadth of educational profiles across the area.

Within Missouri, this is the #109 most populous of 116 counties and ranks #49 for median household income .

Weighted by population, the typical household earns about $68,796 across the county — reflecting what a typical resident sees, not a simple ZIP average.

23.2% of adults age 25+ hold a bachelor's degree or higher (759 of 3,266 reporting).

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

Stories about Putnam County


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.

Unionville

All ZIP Codes in Putnam County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
63565UnionvilleStandard3,965$69,643274.20.8%
63551LivoniaStandard251$76,38943.70.0%
64672PowersvilleStandard185$43,25082.866.7%
64655LucerneStandard9365.4-65.8%
63567WorthingtonStandard70$61,11111.4-58.6%

Adjacent & Nearby Counties