Decatur, MI Demographics

A map of Decatur's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	1,352	1,281	73.7%	77.6%
Hispanic	296	203	16.1%	12.3%
Multiracial	119	97	6.5%	5.9%
Black	63	34	3.4%	2.1%
Asian	5	2	0.3%	0.1%
Native American/Other	0	34	0.0%	2.1%

Decatur, Michigan has an estimated population of 1,835, a large increase from the 1,651 recorded in the 2020 Census. The population is 73.7% White, 16.1% Hispanic, 6.5% Multiracial, 3.4% Black, 0.3% Asian, and 0.0% Native American/Other. 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 has become more racially diverse since the 2020 Census. It is less diverse than Michigan 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 37.9% in 2020 and 42.6% in the most recent ACS estimates.

Decatur is ranked the 325th most populous place in Michigan, out of 745 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 339th most populous place in the 2020 Census.

Decatur's White Population

1,352 residents of Decatur, or 73.7% of the population, identify as White. The share of White residents in Decatur is comparable to the share in Michigan overall, where 72.4% of the population is White. Decatur ranks 635th statewide in terms of White residents as a share of the population, out of 745 places.

Since the 2020 Census, Decatur's White population has grown by an estimated 5.5%. White residents' share of Decatur's population has decreased from 77.6% to 73.7%.

Decatur is more White than neighboring Lawrence (54.9% White). Decatur is less White than neighboring Paw Paw (76.4% White), Lawton (86.6% White), Marcellus (93.9% White), and Dowagiac (74.9% White).

Decatur's Black Population

63 residents of Decatur, or 3.4% of the population, identify as Black. The share of Black residents in Decatur is lower than in Michigan overall, where 13.1% of the population is Black. Decatur ranks 168th statewide in terms of Black residents as a share of the population, out of 745 places.

Since the 2020 Census, Decatur's Black population has grown by an estimated 85.3%. Black residents' share of Decatur's population has increased from 2.1% to 3.4%.

Decatur is more Black than neighboring Lawrence (0.4% Black), Paw Paw (2.6% Black), Lawton (1.7% Black), and Marcellus (1.6% Black). Decatur is less Black than neighboring Dowagiac (8% Black).

Decatur's Asian Population

5 residents of Decatur, or 0.3% of the population, identify as Asian. The share of Asian residents in Decatur is slightly lower than in Michigan overall, where 3.4% of the population is Asian. Decatur ranks 560th statewide in terms of Asian residents as a share of the population, out of 745 places.

Since the 2020 Census, Decatur's Asian population has grown by an estimated 150.0%. Asian residents' share of Decatur's population has remained roughly unchanged at 0.3%.

Decatur is more Asian than neighboring Lawrence (0% Asian), and Marcellus (0% Asian). Decatur is less Asian than neighboring Paw Paw (3.1% Asian), Lawton (0.9% Asian), and Dowagiac (0.4% Asian).

Decatur's Hispanic Population

296 residents of Decatur, or 16.1% of the population, identify as Hispanic. The share of Hispanic residents in Decatur is considerably higher than in Michigan overall, where 5.9% of the population is Hispanic. Decatur ranks 35th statewide in terms of Hispanic residents as a share of the population, out of 745 places.

Since the 2020 Census, Decatur's Hispanic population has grown by an estimated 45.8%. Hispanic residents' share of Decatur's population has increased from 12.3% to 16.1%.

Decatur is more Hispanic than neighboring Paw Paw (12.8% Hispanic), Lawton (4.1% Hispanic), Marcellus (2% Hispanic), and Dowagiac (9.2% Hispanic). Decatur is less Hispanic than neighboring Lawrence (42.5% Hispanic).

Decatur's Native American/Other Population

0 residents of Decatur, or 0.0% 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 Michigan overall, where 0.8% of the population is Native American/Other. Decatur ranks 78th statewide in terms of Native American/Other residents as a share of the population, out of 745 places.

Since the 2020 Census, Decatur's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Decatur's population has decreased from 2.1% to 0.0%.

Decatur is less Native American/Other than neighboring Lawrence (1.2% Native American/Other), Lawton (1.7% Native American/Other), and Dowagiac (2% Native American/Other).

Decatur's Multiracial Population

119 residents of Decatur, or 6.5% of the population, identify as Multiracial. The share of Multiracial residents in Decatur is comparable to the share in Michigan overall, where 4.5% of the population is Multiracial. Decatur ranks 116th statewide in terms of Multiracial residents as a share of the population, out of 745 places.

Since the 2020 Census, Decatur's Multiracial population has grown by an estimated 22.7%. Multiracial residents' share of Decatur's population has increased from 5.9% to 6.5%.

Decatur is more Multiracial than neighboring Lawrence (1.1% Multiracial), Paw Paw (5% Multiracial), Lawton (5% Multiracial), Marcellus (2.5% Multiracial), and Dowagiac (5.5% 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.