Census tract · Cascade County
Census Tract 18, Cascade County, Montana
Census Tract 18, GEOID 30013001800, in Cascade County, Montana, mostly within Great Falls (81% of its census blocks). 3,968 residents in the ACS 2020-2024 5-year estimates (±495); the 2020 Census counted 3,642.
Residents, 2020-2024
3,968
±495 (90% margin)
2020 Census count: 3,642
Median household income
$89,444
±$16,639 (90% margin)
Cascade County: $67,690
Median home value
$258,500
±$24,271 (90% margin)
Cascade County: $265,300
Median gross rent
$1,511
±$514 (90% margin)
Cascade County: $939
Where is Census Tract 18?
Census Tract 18 is one of 25 census tracts in Cascade County, Montana. It covers 2.59 square miles of land, 1,406 residents per square mile in 2020. Its GEOID, 30013001800, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Great Falls | 81% |
4 census tracts border Census Tract 18: Tract 16 ($51,953), Tract 19 ($86,000), Tract 101 ($68,295) and Tract 108 ($31,498). 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 18?
The 2020-2024 American Community Survey puts Census Tract 18's population at 3,968 (±495) in 1,516 households; the 2020 Census counted 3,642 residents and 1,582 housing units.
| Measure | Tract 18 | Great Falls |
|---|---|---|
| Total population | 3,968 ±495 | 60,329 |
| Households | 1,516 ±155 | 26,379 |
| Average household size | 2.61 ±0.25 | 2.21 |
| Housing units | 1,584 ±135 | 28,418 |
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 18?
The median resident of Census Tract 18 is 36.5 years old; 25.5% are under 18 and 18.3% are 65 or older. The largest group is non-Hispanic white residents at 84.4%, then non-Hispanic residents of two or more races at 11.0%.
| Measure | Tract 18 | Great Falls |
|---|---|---|
| Median age | 36.5 ±2.8 | 39.0 |
| Under 18 years | 25.5% ±4.6 pts | 21.4% |
| 65 years and over | 18.3% ±3.3 pts | 20.0% |
| Hispanic or Latino (any race) | 1.9% ±2.3 pts | 5.1% |
| White alone, not Hispanic | 84.4% ±6.0 pts | 82.3% |
| Black or African American alone, not Hispanic | 0.0% ±0.8 pts | 1.0% |
| Asian alone, not Hispanic | 2.5% ±2.9 pts | 1.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.2 pts | 3.7% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 11.0% ±5.2 pts | 6.0% |
| Some other race alone, not Hispanic | 0.0% ±0.8 pts | 0.8% |
| Born outside the United States | 1.2% ±0.9 pts | 2.2% |
| Speak a language other than English at home (age 5+) | 4.4% ±2.9 pts | 3.6% |
| Civilian veterans (age 18+) | 8.3% ±2.6 pts | 12.4% |
| With a disability | 14.2% ±3.7 pts | 18.1% |
| No health insurance coverage | 5.3% ±2.6 pts | 7.0% |
| High school graduate or higher (age 25+) | 96.7% ±2.6 pts | 94.7% |
| Bachelor's degree or higher (age 25+) | 18.2% ±5.6 pts | 27.8% |
| Graduate or professional degree (age 25+) | 5.4% ±2.7 pts | 10.4% |
| Lived in the same house a year earlier | 89.5% ±6.7 pts | 83.6% |
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 18 earn?
Half of the 1,516 households in Census Tract 18 earn less than $89,444 a year (±$16,639), against $67,690 across Cascade County: 3rd highest of the county's 25 tracts with a reliable estimate. 16.3% of residents live below the poverty line.
| Measure | Tract 18 | Great Falls |
|---|---|---|
| Median household income | $89,444 ±$16,639 | $63,373 |
| Mean household income | $94,303 ±$8,183 | $85,486 |
| Per capita income | $36,456 ±$4,092 | $38,231 |
| People below the poverty line | 16.3% ±7.8 pts | 14.5% |
| Children under 18 below the poverty line | 28.8% ±17.7 pts | 19.3% |
| Households receiving SNAP | 11.3% ±6.0 pts | 12.7% |
| Households with a computer | 97.6% ±2.1 pts | 94.3% |
| Households with a broadband subscription | 91.7% ±6.8 pts | 90.1% |
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 18?
Owners occupy 81.1% of Census Tract 18's occupied homes and renters 18.9%. The median owner-occupied home is valued at $258,500 by its owner (±$24,271). The median renter pays $1,511 a month including utilities, and 50.8% of renters pay 35% or more of their income on rent.
| Measure | Tract 18 | Great Falls |
|---|---|---|
| Median home value (owner-occupied) | $258,500 ±$24,271 | $257,000 |
| Median gross rent | $1,511 ±$514 | $900 |
| Renters paying 35% or more of income on rent | 50.8% ±27.0 pts | 34.1% |
| Median monthly owner costs, with a mortgage | $1,444 ±$89 | $1,501 |
| Owner-occupied homes | 81.1% ±7.5 pts | 66.1% |
| Renter-occupied homes | 18.9% ±7.5 pts | 33.9% |
| Housing units | 1,584 ±135 | 28,418 |
| Single-family detached homes | 80.4% ±6.5 pts | 65.2% |
| Mobile homes | 0.9% ±1.4 pts | 4.2% |
| Built 2020 or later | 4.9% ±5.4 pts | 1.2% |
| Built 2010 to 2019 | 5.1% ±3.7 pts | 5.3% |
| Built 1939 or earlier | 2.4% ±1.9 pts | 16.8% |
| Households with no vehicle | 5.5% ±4.8 pts | 7.1% |
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 18 get to work?
79.9% of Census Tract 18's workers drive alone and 8.0% work from home. The average trip to work takes 13.5 minutes.
| Measure | Tract 18 | Great Falls |
|---|---|---|
| In the labor force (age 16+) | 71.5% ±4.6 pts | 62.4% |
| Unemployment rate | 5.1% ±4.4 pts | 3.7% |
| Drove alone to work | 79.9% ±7.0 pts | 79.3% |
| Carpooled | 9.4% ±6.1 pts | 9.7% |
| Public transportation | 0.1% ±0.3 pts | 0.8% |
| Walked | 0.6% ±0.7 pts | 2.0% |
| Worked from home | 8.0% ±4.6 pts | 6.8% |
| Mean travel time to work | 13.5 min ±1.4 | 14.9 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 18 compare with the other tracts in Cascade County?
Among Cascade County's tracts with a reliable estimate, Census Tract 18 ranks as shown below (1 = highest).
| Measure | In Cascade County | In Great Falls |
|---|---|---|
| Population | 8th of 25 | 6th of 19 |
| Residents per square mile | 14th of 25 | 13th of 19 |
| Median household income | 3rd of 25 | 3rd of 19 |
| Per capita income | 13th of 25 | 10th of 19 |
| Median home value | 10th of 23 | 7th of 19 |
| Median gross rent | 2nd of 25 | 2nd of 19 |
| Poverty rate | 7th of 22 | 7th of 17 |
| Bachelor's degree or higher | 21st of 25 | 15th of 19 |
| Median age | 18th of 25 | 14th of 19 |
| Owner-occupied share | 8th of 23 | 5th of 19 |
The tracts next to it on Cascade County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 23.02 | 1st | $160,984±$24,328 |
| Tract 23.01 | 2nd | $111,369±$5,804 |
| Tract 18 | 3rd | $89,444±$16,639 |
| Tract 19 | 4th | $86,000±$12,520 · within the margin of this tract |
| Tract 104 | 5th | $81,375±$23,575 · within the margin of this tract |
| Tract 12.01 | 6th | $80,809±$11,112 · 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 18?
3 of the 18 figures for Census Tract 18 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