| ZIP Codes: | 8 ZIP Codes (5 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Code: | 731 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:46 PM |
| Population: | 35,479 [See All] |
| FIPS: | 47045 |
| CBSA: | Dyersburg, TN |
| Land Area: | 438 sq mi |
| Water Area: | 10 sq mi |
| Coordinates: | 36.0739, -89.3737 |
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35,479 residents live across 8 ZIPs covering 438 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 37,174 to 35,479 from 2014 to 2024 — a -4.6% change. 2 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 38030 (Finley, $123,750 median) and poorest ZIP 38259 (Trimble, $39,896) are 27.6 miles apart — a 3.1× income gap across local geography.
Median home values vary 1.8× across this county — from $108,700 in 38259 (Trimble) to $192,700 in 38030 (Finley).
Density varies 91× across the county — from 2 people/sq mi in 38030 (Finley) to 167 in 38024 (Dyersburg).
Educational attainment ranges from 11.6% bachelor's+ in 38259 (Trimble) to 26.7% in 38059 (Newbern) — the breadth of educational profiles across the area.
Within Tennessee, this is the #44 most populous of 95 counties and ranks #27 for median household income .
Weighted by population, the typical household earns about $58,407 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.4% of adults age 25+ hold a bachelor's degree or higher (5,158 of 24,114 reporting).
5 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 3.1× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 38024 | Dyersburg | Standard | 25,952 | $57,061 | 155.8 | -5.7% |
| 38059 | Newbern | Standard | 8,281 | $62,281 | 122.1 | 8.9% |
| 38259 | Trimble | Standard | 672 | $39,896 | 30.1 | -21.8% |
| 38030 | Finley | Standard | 228 | $123,750 | 124.1 | -72.8% |
| 38047 | Lenox | Standard | 205 | $58,438 | 6.1 | 561.3% |
| 38070 | Tigrett | PO Box | 141 | $61,062 | 0.0 | -48.0% |
| 38007 | Bogota | PO Box | 0 | — | 0.0 | -100.0% |
| 38025 | Dyersburg | PO Box | — | — | 0.0 | — |