Iron Mountain Lake, MO Demographics

A map of Iron Mountain Lake's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	754	575	96.5%	89.8%
Multiracial	21	43	2.7%	6.7%
Hispanic	4	17	0.5%	2.7%
Black	1	2	0.1%	0.3%
Native American/Other	1	3	0.1%	0.5%
Asian	0	0	0.0%	0.0%

Iron Mountain Lake, Missouri has an estimated population of 781, a large increase from the 640 recorded in the 2020 Census. The population is 96.5% White, 2.7% Multiracial, 0.5% Hispanic, 0.1% Black, 0.1% Native American/Other, and 0.0% Asian. This demographic dot map shows the population of Iron Mountain Lake, with one dot drawn for each person counted by the Census, color-coded by race.

Iron Mountain Lake has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Missouri overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Iron Mountain Lake, that probability was 18.8% in 2020 and 6.7% in the most recent ACS estimates.

Iron Mountain Lake is ranked the 424th most populous place in Missouri, out of 1,082 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). Iron Mountain Lake was ranked the 453rd most populous place in the 2020 Census.

Iron Mountain Lake's White Population

754 residents of Iron Mountain Lake, or 96.5% of the population, identify as White. The share of White residents in Iron Mountain Lake is significantly higher than in Missouri overall, where 76.3% of the population is White. Iron Mountain Lake ranks 521st statewide in terms of White residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Iron Mountain Lake's White population has grown by an estimated 31.1%. White residents' share of Iron Mountain Lake's population has increased from 89.8% to 96.5%.

Iron Mountain Lake is more White than neighboring Pilot Knob (87% White), Bismarck (88.4% White), Ironton (91.6% White), and Arcadia (94.9% White). Iron Mountain Lake is less White than neighboring Doe Run (99.2% White).

Iron Mountain Lake's Black Population

1 residents of Iron Mountain Lake, or 0.1% of the population, identify as Black. The share of Black residents in Iron Mountain Lake is considerably lower than in Missouri overall, where 10.9% of the population is Black. Iron Mountain Lake ranks 647th statewide in terms of Black residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Iron Mountain Lake's Black population has declined by an estimated 50.0%. Black residents' share of Iron Mountain Lake's population has remained roughly unchanged at 0.1%.

Iron Mountain Lake is more Black than neighboring Doe Run (0% Black). Iron Mountain Lake is less Black than neighboring Pilot Knob (0.3% Black), Ironton (0.7% Black), and Arcadia (0.3% Black).

Iron Mountain Lake's Asian Population

0 residents of Iron Mountain Lake, or 0.0% of the population, identify as Asian. The share of Asian residents in Iron Mountain Lake is slightly lower than in Missouri overall, where 2.1% of the population is Asian. Iron Mountain Lake ranks 615th statewide in terms of Asian residents as a share of the population, out of 1,082 places.

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

Iron Mountain Lake is less Asian than neighboring Pilot Knob (0.8% Asian).

Iron Mountain Lake's Hispanic Population

4 residents of Iron Mountain Lake, or 0.5% of the population, identify as Hispanic. The share of Hispanic residents in Iron Mountain Lake is slightly lower than in Missouri overall, where 5.2% of the population is Hispanic. Iron Mountain Lake ranks 462nd statewide in terms of Hispanic residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Iron Mountain Lake's Hispanic population has declined by an estimated 76.5%. Hispanic residents' share of Iron Mountain Lake's population has decreased from 2.7% to 0.5%.

Iron Mountain Lake is more Hispanic than neighboring Arcadia (0% Hispanic), and Doe Run (0% Hispanic). Iron Mountain Lake is less Hispanic than neighboring Pilot Knob (0.8% Hispanic), Bismarck (2.7% Hispanic), and Ironton (2.6% Hispanic).

Iron Mountain Lake's Native American/Other Population

1 residents of Iron Mountain Lake, or 0.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Iron Mountain Lake is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. Iron Mountain Lake ranks 626th statewide in terms of Native American/Other residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Iron Mountain Lake's Native American/Other population has declined by an estimated 66.7%. Native American/Other residents' share of Iron Mountain Lake's population has remained roughly unchanged at 0.1%.

Iron Mountain Lake is more Native American/Other than neighboring Arcadia (0% Native American/Other), and Doe Run (0% Native American/Other). Iron Mountain Lake is less Native American/Other than neighboring Pilot Knob (0.5% Native American/Other), Bismarck (0.7% Native American/Other), and Ironton (1.2% Native American/Other).

Iron Mountain Lake's Multiracial Population

21 residents of Iron Mountain Lake, or 2.7% of the population, identify as Multiracial. The share of Multiracial residents in Iron Mountain Lake is slightly lower than in Missouri overall, where 4.8% of the population is Multiracial. Iron Mountain Lake ranks 217th statewide in terms of Multiracial residents as a share of the population, out of 1,082 places.

Since the 2020 Census, Iron Mountain Lake's Multiracial population has declined by an estimated 51.2%. Multiracial residents' share of Iron Mountain Lake's population has decreased from 6.7% to 2.7%.

Iron Mountain Lake is more Multiracial than neighboring Doe Run (0.8% Multiracial). Iron Mountain Lake is less Multiracial than neighboring Pilot Knob (10.7% Multiracial), Bismarck (8.2% Multiracial), Ironton (3.9% Multiracial), and Arcadia (4.8% 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.