Decatur, Alabama

Decatur population, 2020 to 2024

Decatur added 840 residents from July 2020 to July 2024, a change of +1.5%. In the latest year it moved by +198. Among 107 Alabama places of 5,000 or more, that growth ranks 55th; the median place changed by +1.7%. The median place of 5,000+ in Alabama has 14,094 people, so Decatur is 4.1 times that size.

Decatur covers 54.60 square miles of land and 6.42 of water, for 1,062 people per square mile of land. The median Alabama place of 5,000+ has 715, so Decatur is denser than the typical town.

The 2 counties Decatur spans

Decatur crosses county lines. The Census county-part estimates split its 57,974 residents as follows; Morgan County holds 99.9% of them. The shaded shapes are on the map above; dots mark the eight nearest places.

ZIP codes in Decatur

3 ZIP Code Tabulation Areas (ZCTAs) overlap Decatur by at least 10% of the ZCTA's or the city's land: 35601, 35603, 35671. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Decatur is

The Census internal point of Decatur is at 34.573000, -86.989900. Montgomery, the capital, is 156.9 miles SSE in a straight line. The nearest larger place is Madison, AL (64,029 people), 16.0 miles away. The nearest city of 100,000 or more is Huntsville, AL, 19.8 miles away.

Daylight in Decatur

At 34.57° N, Decatur gets about 14 h 28 min of daylight around the June solstice and 9 h 50 min around the December solstice, a swing of 4 h 38 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Decatur

The eight nearest incorporated places of 1,000+ in Alabama, measured between internal points. The closest is Trinity, 5.5 miles away, with 2,602 people.