St. Martinville, LA Demographics

A map of St. Martinville's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Black	2,588	3,240	48.9%	60.2%
White	2,396	1,853	45.2%	34.4%
Multiracial	155	125	2.9%	2.3%
Hispanic	77	108	1.5%	2.0%
Native American/Other	59	34	1.1%	0.6%
Asian	22	19	0.4%	0.4%

St. Martinville, Louisiana has an estimated population of 5,297, a slight decrease from the 5,379 recorded in the 2020 Census. The population is 48.9% Black, 45.2% White, 2.9% Multiracial, 1.5% Hispanic, 1.1% Native American/Other, and 0.4% Asian. This demographic dot map shows the population of St. Martinville, with one dot drawn for each person counted by the Census, color-coded by race.

St. Martinville has become more racially diverse since the 2020 Census. It is less diverse than Louisiana overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In St. Martinville, that probability was 51.7% in 2020 and 55.5% in the most recent ACS estimates.

St. Martinville is ranked the 101st most populous place in Louisiana, out of 489 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). St. Martinville was ranked the 103rd most populous place in the 2020 Census.

St. Martinville's White Population

2,396 residents of St. Martinville, or 45.2% of the population, identify as White. The share of White residents in St. Martinville is considerably lower than in Louisiana overall, where 55.7% of the population is White. St. Martinville ranks 396th statewide in terms of White residents as a share of the population, out of 489 places.

Since the 2020 Census, St. Martinville's White population has grown by an estimated 29.3%. White residents' share of St. Martinville's population has increased from 34.4% to 45.2%.

St. Martinville is more White than neighboring New Iberia (42.2% White). St. Martinville is less White than neighboring Cade (76.8% White), Parks (54.1% White), Loreauville (63.6% White), and Broussard (74.1% White).

St. Martinville's Black Population

2,588 residents of St. Martinville, or 48.9% of the population, identify as Black. The share of Black residents in St. Martinville is significantly higher than in Louisiana overall, where 30.5% of the population is Black. St. Martinville ranks 76th statewide in terms of Black residents as a share of the population, out of 489 places.

Since the 2020 Census, St. Martinville's Black population has declined by an estimated 20.1%. Black residents' share of St. Martinville's population has decreased from 60.2% to 48.9%.

St. Martinville is more Black than neighboring Cade (15.3% Black), Parks (43.9% Black), Loreauville (36.4% Black), New Iberia (45.1% Black), and Broussard (16.6% Black).

St. Martinville's Asian Population

22 residents of St. Martinville, or 0.4% of the population, identify as Asian. The share of Asian residents in St. Martinville is comparable to the share in Louisiana overall, where 1.7% of the population is Asian. St. Martinville ranks 228th statewide in terms of Asian residents as a share of the population, out of 489 places.

Since the 2020 Census, St. Martinville's Asian population has grown by an estimated 15.8%. Asian residents' share of St. Martinville's population has remained roughly unchanged at 0.4%.

St. Martinville is more Asian than neighboring Parks (0.2% Asian), and Loreauville (0% Asian). St. Martinville is less Asian than neighboring Cade (1.2% Asian), New Iberia (2.7% Asian), and Broussard (1.7% Asian).

St. Martinville's Hispanic Population

77 residents of St. Martinville, or 1.5% of the population, identify as Hispanic. The share of Hispanic residents in St. Martinville is lower than in Louisiana overall, where 7.2% of the population is Hispanic. St. Martinville ranks 343rd statewide in terms of Hispanic residents as a share of the population, out of 489 places.

Since the 2020 Census, St. Martinville's Hispanic population has declined by an estimated 28.7%. Hispanic residents' share of St. Martinville's population has decreased from 2.0% to 1.5%.

St. Martinville is more Hispanic than neighboring Parks (0.5% Hispanic), and Loreauville (0% Hispanic). St. Martinville is less Hispanic than neighboring Cade (4.3% Hispanic), New Iberia (5.9% Hispanic), and Broussard (4.8% Hispanic).

St. Martinville's Native American/Other Population

59 residents of St. Martinville, or 1.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in St. Martinville is comparable to the share in Louisiana overall, where 1% of the population is Native American/Other. St. Martinville ranks 258th statewide in terms of Native American/Other residents as a share of the population, out of 489 places.

Since the 2020 Census, St. Martinville's Native American/Other population has grown by an estimated 73.5%. Native American/Other residents' share of St. Martinville's population has increased from 0.6% to 1.1%.

St. Martinville is more Native American/Other than neighboring Cade (0.2% Native American/Other), Parks (0% Native American/Other), Loreauville (0% Native American/Other), New Iberia (0.1% Native American/Other), and Broussard (0% Native American/Other).

St. Martinville's Multiracial Population

155 residents of St. Martinville, or 2.9% of the population, identify as Multiracial. The share of Multiracial residents in St. Martinville is comparable to the share in Louisiana overall, where 3.8% of the population is Multiracial. St. Martinville ranks 376th statewide in terms of Multiracial residents as a share of the population, out of 489 places.

Since the 2020 Census, St. Martinville's Multiracial population has grown by an estimated 24.0%. Multiracial residents' share of St. Martinville's population has increased from 2.3% to 2.9%.

St. Martinville is more Multiracial than neighboring Cade (2.2% Multiracial), Parks (1.2% Multiracial), and Loreauville (0% Multiracial). St. Martinville is less Multiracial than neighboring New Iberia (3.9% 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.