Alton, NH Demographics

A map of Alton's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	280	474	99.6%	95.0%
Multiracial	1	16	0.4%	3.2%
Black	0	1	0.0%	0.2%
Asian	0	0	0.0%	0.0%
Hispanic	0	1	0.0%	0.2%
Native American/Other	0	7	0.0%	1.4%

Alton, New Hampshire has an estimated population of 281, a dramatic decrease from the 499 recorded in the 2020 Census. The population is 99.6% White, 0.4% Multiracial, 0.0% Black, 0.0% Asian, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Alton, with one dot drawn for each person counted by the Census, color-coded by race.

Alton has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than New Hampshire overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Alton, that probability was 9.7% in 2020 and 0.7% in the most recent ACS estimates.

Alton is ranked the 90th most populous place in New Hampshire, out of 100 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). Alton was ranked the 82nd most populous place in the 2020 Census.

Alton's White Population

280 residents of Alton, or 99.6% of the population, identify as White. The share of White residents in Alton is considerably higher than in New Hampshire overall, where 86.9% of the population is White. Alton ranks 6th statewide in terms of White residents as a share of the population, out of 100 places.

Since the 2020 Census, Alton's White population has declined by an estimated 40.9%. White residents' share of Alton's population has increased from 95.0% to 99.6%.

Alton is more White than neighboring Wolfeboro (94.4% White), Farmington (93% White), Pittsfield (94.4% White), and Sanbornville (95.3% White). Alton is less White than neighboring Union (100% White).

Alton's Black Population

0 residents of Alton, or 0.0% of the population, identify as Black. The share of Black residents in Alton is comparable to the share in New Hampshire overall, where 1.3% of the population is Black. Alton ranks 78th statewide in terms of Black residents as a share of the population, out of 100 places.

Since the 2020 Census, Alton's Black population has declined by an estimated 100.0%. Black residents' share of Alton's population has remained roughly unchanged at 0.0%.

Alton is less Black than neighboring Farmington (1.9% Black).

Alton's Asian Population

0 residents of Alton, or 0.0% of the population, identify as Asian. The share of Asian residents in Alton is slightly lower than in New Hampshire overall, where 2.6% of the population is Asian. Alton ranks 94th statewide in terms of Asian residents as a share of the population, out of 100 places.

Since the 2020 Census, Alton's Asian population has grown from 0 to an estimated 0. Asian residents' share of Alton's population has remained roughly unchanged at 0.0%.

Alton is less Asian than neighboring Wolfeboro (0.7% Asian).

Alton's Hispanic Population

0 residents of Alton, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Alton is slightly lower than in New Hampshire overall, where 4.7% of the population is Hispanic. Alton ranks 100th statewide in terms of Hispanic residents as a share of the population, out of 100 places.

Since the 2020 Census, Alton's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Alton's population has remained roughly unchanged at 0.0%.

Alton is less Hispanic than neighboring Wolfeboro (1.3% Hispanic), Farmington (0.7% Hispanic), Pittsfield (0.6% Hispanic), and Sanbornville (3% Hispanic).

Alton's Native American/Other Population

0 residents of Alton, 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 Alton is comparable to the share in New Hampshire overall, where 0.5% of the population is Native American/Other. Alton ranks 7th statewide in terms of Native American/Other residents as a share of the population, out of 100 places.

Since the 2020 Census, Alton's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Alton's population has decreased from 1.4% to 0.0%.

Alton is less Native American/Other than neighboring Farmington (2.6% Native American/Other).

Alton's Multiracial Population

1 residents of Alton, or 0.4% of the population, identify as Multiracial. The share of Multiracial residents in Alton is slightly lower than in New Hampshire overall, where 4% of the population is Multiracial. Alton ranks 76th statewide in terms of Multiracial residents as a share of the population, out of 100 places.

Since the 2020 Census, Alton's Multiracial population has declined by an estimated 93.8%. Multiracial residents' share of Alton's population has decreased from 3.2% to 0.4%.

Alton is more Multiracial than neighboring Union (0% Multiracial). Alton is less Multiracial than neighboring Wolfeboro (3.6% Multiracial), Farmington (1.8% Multiracial), Pittsfield (5% Multiracial), and Sanbornville (1.7% 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.