| ZIP Codes: | 5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 235 / 573 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:54:02 PM |
| Population: | 29,520 [See All] |
| FIPS: | 29127 |
| CBSA: | Hannibal, MO |
| Land Area: | 411 sq mi |
| Water Area: | 9 sq mi |
| Coordinates: | 39.8371, -91.5702 |
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29,520 residents live across 5 ZIPs covering 411 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 29,941 to 29,520 from 2014 to 2024 — a -1.4% change. 2 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 63471 (Taylor, $103,182 median) and poorest ZIP 63401 (Hannibal, $60,036) are 18.5 miles apart — a 1.7× income gap across local geography.
Median home values vary 1.9× across this county — from $146,100 in 63463 (Philadelphia) to $271,200 in 63471 (Taylor).
Density varies 12× across the county — from 15 people/sq mi in 63463 (Philadelphia) to 184 in 63401 (Hannibal).
Educational attainment ranges from 22.7% bachelor's+ in 63454 (Maywood) to 64.0% in 63471 (Taylor) — the breadth of educational profiles across the area.
Within Missouri, this is the #37 most populous of 116 counties and ranks #16 for median household income .
Weighted by population, the typical household earns about $64,231 across the county — reflecting what a typical resident sees, not a simple ZIP average.
25.0% of adults age 25+ hold a bachelor's degree or higher (4,954 of 19,845 reporting).
5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.