Nampa, ID Demographics

A map of Nampa's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	74,259	67,229	67.3%	67.1%
Hispanic	28,059	25,329	25.4%	25.3%
Multiracial	4,664	4,394	4.2%	4.4%
Native American/Other	1,351	1,407	1.2%	1.4%
Black	1,285	810	1.2%	0.8%
Asian	701	1,031	0.6%	1.0%

Nampa, Idaho has an estimated population of 110,319, a large increase from the 100,200 recorded in the 2020 Census. The population is 67.3% White, 25.4% Hispanic, 4.2% Multiracial, 1.2% Black, 1.2% Native American/Other, and 0.6% Asian. This demographic dot map shows the population of Nampa, with one dot drawn for each person counted by the Census, color-coded by race.

Nampa is about as racially diverse as it was in the 2020 Census. It is considerably more diverse than Idaho overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Nampa, that probability was 48.4% in 2020 and 48.0% in the most recent ACS estimates.

Nampa is ranked the 3rd most populous place in Idaho, out of 236 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). Nampa was ranked the 3rd most populous place in the 2020 Census.

Nampa's White Population

74,259 residents of Nampa, or 67.3% of the population, identify as White. The share of White residents in Nampa is considerably lower than in Idaho overall, where 78.6% of the population is White. Nampa ranks 194th statewide in terms of White residents as a share of the population, out of 236 places.

Since the 2020 Census, Nampa's White population has grown by an estimated 10.5%. White residents' share of Nampa's population has remained roughly unchanged at 67.3%.

Nampa is more White than neighboring Caldwell (56% White). Nampa is less White than neighboring Middleton (75.9% White), Star (80.9% White), Meridian (80.6% White), and Kuna (85% White).

Nampa's Black Population

1,285 residents of Nampa, or 1.2% of the population, identify as Black. The share of Black residents in Nampa is comparable to the share in Idaho overall, where 0.7% of the population is Black. Nampa ranks 19th statewide in terms of Black residents as a share of the population, out of 236 places.

Since the 2020 Census, Nampa's Black population has grown by an estimated 58.6%. Black residents' share of Nampa's population has remained roughly unchanged at 1.2%.

Nampa is more Black than neighboring Caldwell (0.3% Black), Middleton (0.4% Black), Star (0.4% Black), and Kuna (0.4% Black).

Nampa's Asian Population

701 residents of Nampa, or 0.6% of the population, identify as Asian. The share of Asian residents in Nampa is comparable to the share in Idaho overall, where 1.3% of the population is Asian. Nampa ranks 38th statewide in terms of Asian residents as a share of the population, out of 236 places.

Since the 2020 Census, Nampa's Asian population has declined by an estimated 32.0%. Asian residents' share of Nampa's population has remained roughly unchanged at 0.6%.

Nampa is less Asian than neighboring Caldwell (0.9% Asian), Middleton (0.7% Asian), Star (1.3% Asian), Meridian (2.4% Asian), and Kuna (1.1% Asian).

Nampa's Hispanic Population

28,059 residents of Nampa, or 25.4% of the population, identify as Hispanic. The share of Hispanic residents in Nampa is considerably higher than in Idaho overall, where 13.6% of the population is Hispanic. Nampa ranks 38th statewide in terms of Hispanic residents as a share of the population, out of 236 places.

Since the 2020 Census, Nampa's Hispanic population has grown by an estimated 10.8%. Hispanic residents' share of Nampa's population has remained roughly unchanged at 25.4%.

Nampa is more Hispanic than neighboring Middleton (15.4% Hispanic), Star (10.8% Hispanic), Meridian (10.5% Hispanic), and Kuna (9.4% Hispanic). Nampa is less Hispanic than neighboring Caldwell (36.8% Hispanic).

Nampa's Native American/Other Population

1,351 residents of Nampa, or 1.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Nampa is comparable to the share in Idaho overall, where 1.5% of the population is Native American/Other. Nampa ranks 80th statewide in terms of Native American/Other residents as a share of the population, out of 236 places.

Since the 2020 Census, Nampa's Native American/Other population has declined by an estimated 4.0%. Native American/Other residents' share of Nampa's population has remained roughly unchanged at 1.2%.

Nampa is more Native American/Other than neighboring Middleton (0.5% Native American/Other), Meridian (1% Native American/Other), and Kuna (0.3% Native American/Other). Nampa is less Native American/Other than neighboring Caldwell (1.9% Native American/Other), and Star (1.4% Native American/Other).

Nampa's Multiracial Population

4,664 residents of Nampa, or 4.2% of the population, identify as Multiracial. The share of Multiracial residents in Nampa is comparable to the share in Idaho overall, where 4.2% of the population is Multiracial. Nampa ranks 90th statewide in terms of Multiracial residents as a share of the population, out of 236 places.

Since the 2020 Census, Nampa's Multiracial population has grown by an estimated 6.1%. Multiracial residents' share of Nampa's population has remained roughly unchanged at 4.2%.

Nampa is more Multiracial than neighboring Caldwell (4.1% Multiracial), and Kuna (3.8% Multiracial). Nampa is less Multiracial than neighboring Middleton (7.2% Multiracial), Star (5.3% Multiracial), and Meridian (4.3% 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.