Decatur, AL Demographics

A map of Decatur's Population by Race

Decatur, Alabama has an estimated population of 57,361, a less than 1% change from the 57,938 recorded in the 2020 Census. The population is 55.6% White, 23.0% Black, 16.5% Hispanic, 3.2% Multiracial, 0.9% Native American/Other, and 0.8% Asian. This demographic dot map shows the population of Decatur, with one dot drawn for each person counted by the Census, color-coded by race.

Decatur is about as racially diverse as it was in the 2020 Census. It is considerably more diverse than Alabama overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Decatur, that probability was 61.4% in 2020 and 60.9% in the most recent ACS estimates.

Decatur is ranked the 10th most populous place in Alabama, out of 594 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Decatur was ranked the 9th most populous place in the 2020 Census.

Decatur's White Population

31,912 residents of Decatur, or 55.6% of the population, identify as White. The share of White residents in Decatur is lower than in Alabama overall, where 63.4% of the population is White. Decatur ranks 439th statewide in terms of White residents as a share of the population, out of 594 places.

Since the 2020 Census, Decatur's White population has remained roughly the same. White residents' share of Decatur's population has remained roughly unchanged at 55.6%.

Decatur is more White than neighboring Hillsboro (6.6% White). Decatur is less White than neighboring Trinity (67.3% White), Priceville (92.7% White), Mooresville (100% White), and Hartselle (86.2% White).

Decatur's Black Population

13,213 residents of Decatur, or 23.0% of the population, identify as Black. The share of Black residents in Decatur is slightly lower than in Alabama overall, where 25.6% of the population is Black. Decatur ranks 219th statewide in terms of Black residents as a share of the population, out of 594 places.

Since the 2020 Census, Decatur's Black population has remained roughly the same. Black residents' share of Decatur's population has remained roughly unchanged at 23.0%.

Decatur is more Black than neighboring Trinity (13.9% Black), Priceville (1.3% Black), Mooresville (0% Black), and Hartselle (6.7% Black). Decatur is less Black than neighboring Hillsboro (86.7% Black).

Decatur's Asian Population

485 residents of Decatur, or 0.8% of the population, identify as Asian. The share of Asian residents in Decatur is comparable to the share in Alabama overall, where 1.4% of the population is Asian. Decatur ranks 115th statewide in terms of Asian residents as a share of the population, out of 594 places.

Since the 2020 Census, Decatur's Asian population has declined by an estimated 6.4%. Asian residents' share of Decatur's population has remained roughly unchanged at 0.8%.

Decatur is more Asian than neighboring Trinity (0% Asian), Priceville (0% Asian), Mooresville (0% Asian), Hartselle (0.1% Asian), and Hillsboro (0% Asian).

Decatur's Hispanic Population

9,445 residents of Decatur, or 16.5% of the population, identify as Hispanic. The share of Hispanic residents in Decatur is considerably higher than in Alabama overall, where 5.6% of the population is Hispanic. Decatur ranks 21st statewide in terms of Hispanic residents as a share of the population, out of 594 places.

Since the 2020 Census, Decatur's Hispanic population has grown by an estimated 4.1%. Hispanic residents' share of Decatur's population has increased from 15.7% to 16.5%.

Decatur is more Hispanic than neighboring Trinity (13.7% Hispanic), Priceville (3% Hispanic), Mooresville (0% Hispanic), Hartselle (2.5% Hispanic), and Hillsboro (0% Hispanic).

Decatur's Native American/Other Population

497 residents of Decatur, or 0.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Decatur is comparable to the share in Alabama overall, where 0.7% of the population is Native American/Other. Decatur ranks 194th statewide in terms of Native American/Other residents as a share of the population, out of 594 places.

Since the 2020 Census, Decatur's Native American/Other population has grown by an estimated 8.0%. Native American/Other residents' share of Decatur's population has remained roughly unchanged at 0.9%.

Decatur is more Native American/Other than neighboring Trinity (0.4% Native American/Other), Mooresville (0% Native American/Other), Hartselle (0.7% Native American/Other), and Hillsboro (0.8% Native American/Other). Decatur is less Native American/Other than neighboring Priceville (1.3% Native American/Other).

Decatur's Multiracial Population

1,809 residents of Decatur, or 3.2% of the population, identify as Multiracial. The share of Multiracial residents in Decatur is comparable to the share in Alabama overall, where 3.3% of the population is Multiracial. Decatur ranks 187th statewide in terms of Multiracial residents as a share of the population, out of 594 places.

Since the 2020 Census, Decatur's Multiracial population has declined by an estimated 27.6%. Multiracial residents' share of Decatur's population has decreased from 4.3% to 3.2%.

Decatur is more Multiracial than neighboring Priceville (1.7% Multiracial), and Mooresville (0% Multiracial). Decatur is less Multiracial than neighboring Trinity (4.8% Multiracial), Hartselle (3.9% Multiracial), and Hillsboro (5.9% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.