Census tract · St. Louis County
Census Tract 128, St. Louis County, Minnesota
Census Tract 128, GEOID 27137012800, in St. Louis County, Minnesota, mostly within Mountain Iron (95% of its census blocks). 2,897 residents in the ACS 2020-2024 5-year estimates (±23); the 2020 Census counted 2,920.
Residents, 2020-2024
2,897
±23 (90% margin)
2020 Census count: 2,920
Median household income
$82,683
±$11,615 (90% margin)
St. Louis County: $70,069
Median home value
$191,100
±$26,618 (90% margin)
St. Louis County: $221,400
Median gross rent
$918
±$211 (90% margin)
St. Louis County: $1,013
Where is Census Tract 128?
Census Tract 128 is one of 75 census tracts in St. Louis County, Minnesota. It covers 51.35 square miles of land, 57 residents per square mile in 2020. Its GEOID, 27137012800, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Mountain Iron | 95% |
| Leonidas | 3% |
| Virginia | 2% |
6 census tracts border Census Tract 128: Tract 127 ($69,402), Tract 130 ($50,967), Tract 132 ($67,361), Tract 133 ($50,725), Tract 134 ($84,313) and Tract 152 ($76,161). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 128?
The 2020-2024 American Community Survey puts Census Tract 128's population at 2,897 (±23) in 1,370 households; the 2020 Census counted 2,920 residents and 1,445 housing units.
| Measure | Tract 128 | Mountain Iron |
|---|---|---|
| Total population | 2,897 ±23 | 2,860 |
| Households | 1,370 ±98 | 1,346 |
| Average household size | 2.09 ±0.15 | 2.10 |
| Housing units | 1,523 ±124 | 1,499 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 128?
The median resident of Census Tract 128 is 47.5 years old; 16.8% are under 18 and 26.1% are 65 or older. The largest group is non-Hispanic white residents at 95.5%, then non-Hispanic American Indian and Alaska Native residents at 1.5%.
| Measure | Tract 128 | Mountain Iron |
|---|---|---|
| Median age | 47.5 ±3.7 | 47.5 |
| Under 18 years | 16.8% ±2.6 pts | 16.7% |
| 65 years and over | 26.1% ±5.4 pts | 26.0% |
| Hispanic or Latino (any race) | 0.0% ±0.8 pts | 0.0% |
| White alone, not Hispanic | 95.5% ±3.0 pts | 95.5% |
| Black or African American alone, not Hispanic | 0.5% ±0.8 pts | 0.5% |
| Asian alone, not Hispanic | 0.9% ±1.1 pts | 0.9% |
| American Indian and Alaska Native alone, not Hispanic | 1.5% ±1.4 pts | 1.5% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 1.0% ±1.2 pts | 1.0% |
| Some other race alone, not Hispanic | 0.6% ±0.8 pts | 0.6% |
| Born outside the United States | 1.0% ±1.0 pts | 1.0% |
| Speak a language other than English at home (age 5+) | 0.6% ±0.9 pts | 0.6% |
| Civilian veterans (age 18+) | 10.9% ±4.5 pts | 11.0% |
| With a disability | 17.0% ±5.5 pts | 17.0% |
| No health insurance coverage | 1.2% ±1.0 pts | 1.0% |
| High school graduate or higher (age 25+) | 94.5% ±2.6 pts | 94.4% |
| Bachelor's degree or higher (age 25+) | 23.1% ±8.1 pts | 23.3% |
| Graduate or professional degree (age 25+) | 5.8% ±2.6 pts | 5.8% |
| Lived in the same house a year earlier | 93.2% ±3.9 pts | 93.3% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 128 earn?
Half of the 1,370 households in Census Tract 128 earn less than $82,683 a year (±$11,615), against $70,069 across St. Louis County: 21st highest of the county's 73 tracts with a reliable estimate. 12.0% of residents live below the poverty line.
| Measure | Tract 128 | Mountain Iron |
|---|---|---|
| Median household income | $82,683 ±$11,615 | $83,293 |
| Mean household income | $87,723 ±$10,803 | $88,512 |
| Per capita income | $42,325 ±$4,800 | $42,489 |
| People below the poverty line | 12.0% ±5.6 pts | 11.5% |
| Children under 18 below the poverty line | 22.2% ±15.1 pts | 21.3% |
| Households receiving SNAP | 5.4% ±3.5 pts | 5.4% |
| Households with a computer | 92.1% ±5.0 pts | 92.6% |
| Households with a broadband subscription | 90.0% ±5.0 pts | 90.6% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 128?
Owners occupy 70.4% of Census Tract 128's occupied homes and renters 29.6%. The median owner-occupied home is valued at $191,100 by its owner (±$26,618). The median renter pays $918 a month including utilities.
| Measure | Tract 128 | Mountain Iron |
|---|---|---|
| Median home value (owner-occupied) | $191,100 ±$26,618 | $192,800 |
| Median gross rent | $918 ±$211 | $918 |
| Renters paying 35% or more of income on rent | 16.4% ±11.3 pts | 16.4% |
| Median monthly owner costs, with a mortgage | $1,420 ±$238 | $1,431 |
| Owner-occupied homes | 70.4% ±7.8 pts | 69.9% |
| Renter-occupied homes | 29.6% ±7.8 pts | 30.1% |
| Housing units | 1,523 ±124 | 1,499 |
| Single-family detached homes | 66.4% ±8.3 pts | 66.1% |
| Mobile homes | 3.1% ±3.1 pts | 3.1% |
| Built 2020 or later | 0.8% ±1.2 pts | 0.8% |
| Built 2010 to 2019 | 6.0% ±3.8 pts | 6.1% |
| Built 1939 or earlier | 8.9% ±5.2 pts | 8.1% |
| Households with no vehicle | 5.5% ±3.7 pts | 5.2% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 128 get to work?
73.3% of Census Tract 128's workers drive alone. The average trip to work takes 16.6 minutes.
| Measure | Tract 128 | Mountain Iron |
|---|---|---|
| In the labor force (age 16+) | 62.6% ±6.0 pts | 62.6% |
| Unemployment rate | 3.3% ±4.6 pts | 3.3% |
| Drove alone to work | 73.3% ±9.4 pts | 73.0% |
| Carpooled | 12.2% ±5.6 pts | 12.3% |
| Public transportation | 0.0% ±1.5 pts | 0.0% |
| Walked | 0.6% ±0.9 pts | 0.6% |
| Worked from home | 3.6% ±3.2 pts | 3.7% |
| Mean travel time to work | 16.6 min ±3.3 | 16.4 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 128 compare with the other tracts in St. Louis County?
Among St. Louis County's tracts with a reliable estimate, Census Tract 128 ranks as shown below (1 = highest).
| Measure | In St. Louis County |
|---|---|
| Population | 30th of 74 |
| Residents per square mile | 53rd of 74 |
| Median household income | 21st of 73 |
| Per capita income | 27th of 74 |
| Median home value | 42nd of 73 |
| Median gross rent | 42nd of 69 |
| Poverty rate | 37th of 70 |
| Bachelor's degree or higher | 52nd of 74 |
| Median age | 27th of 74 |
| Owner-occupied share | 45th of 72 |
The tracts next to it on St. Louis County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 103.01 | 18th | $86,125±$18,230 · within the margin of this tract |
| Tract 134 | 19th | $84,313±$5,480 · within the margin of this tract |
| Tract 10 | 20th | $83,906±$16,653 · within the margin of this tract |
| Tract 128 | 21st | $82,683±$11,615 |
| Tract 154.01 | 22nd | $80,652±$9,732 · within the margin of this tract |
| Tract 4 | 23rd | $79,375±$7,385 · within the margin of this tract |
| Tract 155.03 | 24th | $77,000±$12,758 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 128?
4 of the 18 figures for Census Tract 128 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections