Seneca, NE Demographics

A map of Seneca's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	43	41	95.6%	83.7%
Multiracial	2	0	4.4%	0.0%
Black	0	0	0.0%	0.0%
Asian	0	0	0.0%	0.0%
Hispanic	0	7	0.0%	14.3%
Native American/Other	0	1	0.0%	2.0%

Seneca, Nebraska has an estimated population of 45, a decrease from the 49 recorded in the 2020 Census. The population is 95.6% White, 4.4% Multiracial, 0.0% Black, 0.0% Asian, 0.0% Hispanic, and 0.0% Native American/Other. This demographic dot map shows the population of Seneca, with one dot drawn for each person counted by the Census, color-coded by race.

Seneca has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Nebraska overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Seneca, that probability was 27.9% in 2020 and 8.5% in the most recent ACS estimates.

Seneca is ranked the 519th most populous place in Nebraska, out of 593 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). Seneca was ranked the 519th most populous place in the 2020 Census.

Seneca's White Population

43 residents of Seneca, or 95.6% of the population, identify as White. The share of White residents in Seneca is significantly higher than in Nebraska overall, where 75.3% of the population is White. Seneca ranks 477th statewide in terms of White residents as a share of the population, out of 593 places.

Since the 2020 Census, Seneca's White population has grown by an estimated 4.9%. White residents' share of Seneca's population has increased from 83.7% to 95.6%.

Seneca is more White than neighboring Mullen (87.9% White), Thedford (89.8% White), and Tryon (93.7% White). Seneca is less White than neighboring Brownlee (100% White), and Halsey (100% White).

Seneca's Black Population

0 residents of Seneca, or 0.0% of the population, identify as Black. The share of Black residents in Seneca is slightly lower than in Nebraska overall, where 4.6% of the population is Black. Seneca ranks 271st statewide in terms of Black residents as a share of the population, out of 593 places.

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

Seneca is less Black than neighboring Thedford (1.3% Black).

Seneca's Asian Population

0 residents of Seneca, or 0.0% of the population, identify as Asian. The share of Asian residents in Seneca is slightly lower than in Nebraska overall, where 2.6% of the population is Asian. Seneca ranks 270th statewide in terms of Asian residents as a share of the population, out of 593 places.

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

Seneca's Hispanic Population

0 residents of Seneca, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Seneca is considerably lower than in Nebraska overall, where 12.7% of the population is Hispanic. Seneca ranks 61st statewide in terms of Hispanic residents as a share of the population, out of 593 places.

Since the 2020 Census, Seneca's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Seneca's population has decreased from 14.3% to 0.0%.

Seneca is less Hispanic than neighboring Tryon (2.8% Hispanic).

Seneca's Native American/Other Population

0 residents of Seneca, 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 Seneca is comparable to the share in Nebraska overall, where 1% of the population is Native American/Other. Seneca ranks 81st statewide in terms of Native American/Other residents as a share of the population, out of 593 places.

Since the 2020 Census, Seneca's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Seneca's population has decreased from 2.0% to 0.0%.

Seneca is less Native American/Other than neighboring Mullen (1.7% Native American/Other).

Seneca's Multiracial Population

2 residents of Seneca, or 4.4% of the population, identify as Multiracial. The share of Multiracial residents in Seneca is comparable to the share in Nebraska overall, where 3.8% of the population is Multiracial. Seneca ranks 531st statewide in terms of Multiracial residents as a share of the population, out of 593 places.

Since the 2020 Census, Seneca's Multiracial population has grown from 0 to an estimated 2. Multiracial residents' share of Seneca's population has increased from 0.0% to 4.4%.

Seneca is more Multiracial than neighboring Brownlee (0% Multiracial), Tryon (3.5% Multiracial), and Halsey (0% Multiracial). Seneca is less Multiracial than neighboring Mullen (10.5% Multiracial), and Thedford (8.9% 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.