| ZIP Codes: | 13 ZIP Codes (10 Standard, 2 PO Box, 1 Unique) [See All] |
| Area Codes: | 256 / 938 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:11:21 PM |
| Population: | 131,567 [See All] |
| FIPS: | 01103 |
| CBSA: | Decatur, AL |
| Land Area: | 727 sq mi |
| Water Area: | 20 sq mi |
| Coordinates: | 34.5110, -86.9048 |
| Quick Link: |
131,567 residents live across 13 ZIPs covering 727 sq mi, served by 9 distinct USPS-recognized cities.
Population moved from 125,696 to 131,567 from 2014 to 2024 — a +4.7% change. 7 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 35754 (Laceys Spring, $96,071 median) and poorest ZIP 35601 (Decatur, $51,429) are 23.0 miles apart — a 1.9× income gap across local geography.
Median home values vary 1.5× across this county — from $168,800 in 35619 (Danville) to $247,400 in 35603 (Decatur).
Density varies 24× across the county — from 40 people/sq mi in 35619 (Danville) to 950 in 35601 (Decatur).
Educational attainment ranges from 14.2% bachelor's+ in 35622 (Falkville) to 28.3% in 35603 (Decatur) — the breadth of educational profiles across the area.
Within Alabama, this is the #9 most populous of 68 counties and ranks #10 for median household income .
Hosts 1 single-entity Unique ZIP: 35699Master Charge .
Weighted by population, the typical household earns about $69,635 across the county — reflecting what a typical resident sees, not a simple ZIP average.
22.3% of adults age 25+ hold a bachelor's degree or higher (20,216 of 90,481 reporting).
10 Standard delivery, 2 PO Box only, 1 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 35601 | Decatur | Standard | 35,449 | $51,429 | 37.3 | 4.3% |
| 35603 | Decatur | Standard | 32,179 | $81,490 | 75.3 | 5.2% |
| 35640 | Hartselle | Standard | 27,344 | $76,620 | 108.0 | 6.5% |
| 35670 | Somerville | Standard | 7,760 | $51,864 | 102.5 | 13.4% |
| 35673 | Trinity | Standard | 7,250 | $80,842 | 46.3 | -7.7% |
| 35622 | Falkville | Standard | 6,830 | $66,506 | 96.9 | -6.9% |
| 35754 | Laceys Spring | Standard | 5,556 | $96,071 | 44.4 | 7.2% |
| 35619 | Danville | Standard | 5,343 | $65,863 | 134.4 | 11.3% |
| 35621 | Eva | Standard | 3,471 | $78,633 | 45.8 | 19.4% |
| 35775 | Valhermoso Springs | Standard | 385 | $51,409 | 36.1 | -27.5% |
| 35609 | Decatur | PO Box | — | — | 0.0 | — |
| 35602 | Decatur | PO Box | — | — | 0.0 | — |
| 35699 | Decatur | Unique | — | — | 0.0 | — |