Mad River, CA Demographics

A map of Mad River's Population by Race

Mad River, California has an estimated population of 272, a large decrease from the 361 recorded in the 2020 Census. The population is 79.4% White, 9.6% Hispanic, 8.8% Multiracial, 2.2% Native American/Other, 0.0% Black, and 0.0% Asian. This demographic dot map shows the population of Mad River, with one dot drawn for each person counted by the Census, color-coded by race.

Mad River has become considerably more racially diverse since the 2020 Census. It is considerably less diverse than California overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Mad River, that probability was 29.3% in 2020 and 35.2% in the most recent ACS estimates.

Mad River is ranked the 1329th most populous place in California, out of 1,618 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). Mad River was ranked the 1280th most populous place in the 2020 Census.

Mad River's White Population

216 residents of Mad River, or 79.4% of the population, identify as White. The share of White residents in Mad River is significantly higher than in California overall, where 33.8% of the population is White. Mad River ranks 121st statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mad River's White population has declined by an estimated 28.5%. White residents' share of Mad River's population has decreased from 83.7% to 79.4%.

Mad River is more White than neighboring Post Mountain (52.8% White), and Phillipsville (0% White). Mad River is less White than neighboring Hyampom (100% White), Ruth (97.1% White), and Alderpoint (100% White).

Mad River's Black Population

0 residents of Mad River, or 0.0% of the population, identify as Black. The share of Black residents in Mad River is lower than in California overall, where 5.2% of the population is Black. Mad River ranks 1349th statewide in terms of Black residents as a share of the population, out of 1,618 places.

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

Mad River's Asian Population

0 residents of Mad River, or 0.0% of the population, identify as Asian. The share of Asian residents in Mad River is significantly lower than in California overall, where 15.3% of the population is Asian. Mad River ranks 652nd statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mad River's Asian population has declined by an estimated 100.0%. Asian residents' share of Mad River's population has decreased from 3.0% to 0.0%.

Mad River's Hispanic Population

26 residents of Mad River, or 9.6% of the population, identify as Hispanic. The share of Hispanic residents in Mad River is significantly lower than in California overall, where 40.2% of the population is Hispanic. Mad River ranks 1502nd statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mad River's Hispanic population has grown by an estimated 23.8%. Hispanic residents' share of Mad River's population has increased from 5.8% to 9.6%.

Mad River is more Hispanic than neighboring Hyampom (0% Hispanic), Ruth (2.9% Hispanic), Post Mountain (0% Hispanic), Alderpoint (0% Hispanic), and Phillipsville (0% Hispanic).

Mad River's Native American/Other Population

6 residents of Mad River, or 2.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Mad River is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Mad River ranks 356th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mad River's Native American/Other population has declined by an estimated 25.0%. Native American/Other residents' share of Mad River's population has remained roughly unchanged at 2.2%.

Mad River is more Native American/Other than neighboring Hyampom (0% Native American/Other), Ruth (0% Native American/Other), Alderpoint (0% Native American/Other), and Phillipsville (0% Native American/Other). Mad River is less Native American/Other than neighboring Post Mountain (47.2% Native American/Other).

Mad River's Multiracial Population

24 residents of Mad River, or 8.8% of the population, identify as Multiracial. The share of Multiracial residents in Mad River is slightly higher than in California overall, where 4.4% of the population is Multiracial. Mad River ranks 657th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mad River's Multiracial population has grown by an estimated 26.3%. Multiracial residents' share of Mad River's population has increased from 5.3% to 8.8%.

Mad River is more Multiracial than neighboring Hyampom (0% Multiracial), Ruth (0% Multiracial), Post Mountain (0% Multiracial), Alderpoint (0% Multiracial), and Phillipsville (0% 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.