Iron County Demographics

A map of Iron County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	8,662	8,602	91.7%	90.2%
Multiracial	380	522	4.0%	5.5%
Hispanic	210	177	2.2%	1.9%
Asian	106	34	1.1%	0.4%
Black	48	136	0.5%	1.4%
Native American/Other	40	66	0.4%	0.7%

Iron County, Missouri has an estimated population of 9,446, a less than 1% change from the 9,537 recorded in the 2020 Census. The population is 91.7% White, 4.0% Multiracial, 2.2% Hispanic, 1.1% Asian, 0.5% Black, and 0.4% Native American/Other. This demographic dot map shows the population of Iron County, with one dot drawn for each person counted by the Census, color-coded by race.

Iron has become 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 County, that probability was 18.3% in 2020 and 15.7% in the most recent ACS estimates.

Iron County is ranked the 89th most populous county in Missouri, out of 115 counties. Iron County was ranked the 88th most populous county in the 2020 Census.

Iron County's White Population

8,662 residents of Iron County, or 91.7% of the population, identify as White. The share of White residents in Iron County is significantly higher than in Missouri overall, where 76.3% of the population is White. Iron County ranks 66th statewide in terms of White residents as a share of the population, out of 115 counties.

Since the 2020 Census, Iron County's White population has remained roughly the same. White residents' share of Iron County's population has increased from 90.2% to 91.7%.

Iron County is more White than neighboring Reynolds County (90.9% White), and St. Francois County (89.9% White). Iron County is less White than neighboring Washington County (91.8% White), Madison County (92.2% White), and Wayne County (92.4% White).

Iron County's Black Population

48 residents of Iron County, or 0.5% of the population, identify as Black. The share of Black residents in Iron County is considerably lower than in Missouri overall, where 10.9% of the population is Black. Iron County ranks 51st statewide in terms of Black residents as a share of the population, out of 115 counties.

Since the 2020 Census, Iron County's Black population has declined by an estimated 64.7%. Black residents' share of Iron County's population has decreased from 1.4% to 0.5%.

Iron County is more Black than neighboring Madison County (0.3% Black), and Wayne County (0.4% Black). Iron County is less Black than neighboring Reynolds County (1.5% Black), St. Francois County (2.7% Black), and Washington County (1.7% Black).

Iron County's Asian Population

106 residents of Iron County, or 1.1% of the population, identify as Asian. The share of Asian residents in Iron County is comparable to the share in Missouri overall, where 2.1% of the population is Asian. Iron County ranks 61st statewide in terms of Asian residents as a share of the population, out of 115 counties.

Since the 2020 Census, Iron County's Asian population has grown by an estimated 211.8%. Asian residents' share of Iron County's population has increased from 0.4% to 1.1%.

Iron County is more Asian than neighboring Reynolds County (0.2% Asian), St. Francois County (0.4% Asian), Washington County (0.1% Asian), Madison County (0.3% Asian), and Wayne County (0.3% Asian).

Iron County's Hispanic Population

210 residents of Iron County, or 2.2% of the population, identify as Hispanic. The share of Hispanic residents in Iron County is slightly lower than in Missouri overall, where 5.2% of the population is Hispanic. Iron County ranks 79th statewide in terms of Hispanic residents as a share of the population, out of 115 counties.

Since the 2020 Census, Iron County's Hispanic population has grown by an estimated 18.6%. Hispanic residents' share of Iron County's population has remained roughly unchanged at 2.2%.

Iron County is more Hispanic than neighboring Reynolds County (1.7% Hispanic), St. Francois County (1.9% Hispanic), Washington County (1.1% Hispanic), and Wayne County (1.5% Hispanic). Iron County is less Hispanic than neighboring Madison County (2.8% Hispanic).

Iron County's Native American/Other Population

40 residents of Iron County, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Iron County is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. Iron County ranks 55th statewide in terms of Native American/Other residents as a share of the population, out of 115 counties.

Since the 2020 Census, Iron County's Native American/Other population has declined by an estimated 39.4%. Native American/Other residents' share of Iron County's population has remained roughly unchanged at 0.4%.

Iron County is more Native American/Other than neighboring Reynolds County (0.3% Native American/Other), and Washington County (0.1% Native American/Other). Iron County is less Native American/Other than neighboring St. Francois County (1% Native American/Other), Madison County (0.6% Native American/Other), and Wayne County (0.8% Native American/Other).

Iron County's Multiracial Population

380 residents of Iron County, or 4.0% of the population, identify as Multiracial. The share of Multiracial residents in Iron County is comparable to the share in Missouri overall, where 4.8% of the population is Multiracial. Iron County ranks 18th statewide in terms of Multiracial residents as a share of the population, out of 115 counties.

Since the 2020 Census, Iron County's Multiracial population has declined by an estimated 27.2%. Multiracial residents' share of Iron County's population has decreased from 5.5% to 4.0%.

Iron County is more Multiracial than neighboring Madison County (3.8% Multiracial). Iron County is less Multiracial than neighboring Reynolds County (5.3% Multiracial), St. Francois County (4.1% Multiracial), Washington County (5.2% Multiracial), and Wayne County (4.6% 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.