Census-designated place · Alaska
Iliamna, Alaska
Iliamna, census-designated place, in Lake and Peninsula Borough, Alaska. Iliamna had 108 residents in the 2020 Census, a full count; the ACS 2020-2024 5-year estimates put it at 70 (±25). GEOID 0235120.
Residents, 2020 Census
108
Census count or controlled total
ACS 2020-2024 estimate: 70 ±25
Median household income
$74,500
±$12,619 (90% margin)
Alaska: $92,788
Median home value
$330,000
±$56,857 (90% margin)
Alaska: $352,900
Median gross rent
not published
Alaska: $1,419
Where is Iliamna and what county is it in?
Iliamna is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Lake and Peninsula Borough, Alaska. It covers 37.2 square miles of land, 3 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Iliamna, and is it growing?
The 2020 Census counted 108 residents in Iliamna, a full count rather than a sample. The 2020-2024 American Community Survey, a sample, estimates 70 (±25).
The Census Bureau publishes yearly population estimates for incorporated places only; Iliamna is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Iliamna | Lake and Peninsula Borough | Change since 2015-2019 |
|---|---|---|---|
| Total population | 70±25 | 1,013 | no clear change |
| Households | 32±11 | 324 | no clear change |
| Average household size | 2.19±0.48 | 2.50 | no clear change |
| Housing units | 58±13 | 1,336 | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Iliamna?
The median resident of Iliamna is 54.3 years old; 27.1% are under 18 and 32.9% are 65 or older. The largest group is non-Hispanic American Indian and Alaska Native residents at 54.3%, then non-Hispanic white residents at 30.0%.
| Measure | Iliamna | Lake and Peninsula Borough | Change since 2015-2019 |
|---|---|---|---|
| Median age | 54.3±17.3 | 33.7 | no clear change |
| Under 18 years | 27.1%±11.3 pts | 23.2% | – |
| 65 years and over | 32.9%±15.0 pts | 10.7% | – |
| Male | 34.3%±10.9 pts | 56.8% | – |
| Hispanic or Latino (any race) | 0.0%±29.2 pts | 2.8% | – |
| White alone, not Hispanic | 30.0%±19.7 pts | 15.9% | – |
| Black or African American alone, not Hispanic | 0.0%±29.2 pts | 1.4% | – |
| Asian alone, not Hispanic | 0.0%±29.2 pts | 1.9% | – |
| American Indian and Alaska Native alone, not Hispanic | 54.3%±21.0 pts | 43.6% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±29.2 pts | 0.0% | – |
| Two or more races, not Hispanic | 15.7%±10.5 pts | 34.3% | – |
| Some other race alone, not Hispanic | 0.0%±29.2 pts | 0.2% | – |
| Born outside the United States | 0.0%±29.2 pts | 5.2% | – |
| Speak a language other than English at home (age 5+) | 8.8%±9.2 pts | 12.8% | – |
| Civilian veterans (age 18+) | 13.7%±8.9 pts | 3.2% | – |
| With a disability | 22.9%±12.5 pts | 11.5% | – |
| No health insurance coverage | 24.3%±13.5 pts | 32.2% | no clear change |
| High school graduate or higher (age 25+) | 100.0%±37.5 pts | 92.1% | – |
| Bachelor's degree or higher (age 25+) | 37.5%±18.9 pts | 16.3% | – |
| Graduate or professional degree (age 25+) | 20.8%±13.1 pts | 4.3% | – |
| Lived in the same house a year earlier | 100.0%±29.2 pts | 89.7% | – |
| Moved from another state in the past year | 0.0%±29.2 pts | 0.7% | – |
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 Iliamna earn?
Half of Iliamna's 32 households earn less than $74,500 a year (±$12,619), against $65,625 in Lake and Peninsula Borough and $92,788 in Alaska. In 2015-2019 the median was $159,990 in 2024 dollars, so it fell by $85,490 after inflation. 30.0% of residents live below the poverty line.
| Measure | Iliamna | Lake and Peninsula Borough | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $74,500±$12,619 | $65,625 | −$85,490 |
| Mean household income | $80,275±$29,672 | $83,450 | – |
| Per capita income | $34,277±$12,168 | $53,670 | no clear change |
| People below the poverty line | 30.0%±19.5 pts | 12.8% | – |
| Children under 18 below the poverty line | 47.4%±34.5 pts | 16.1% | – |
| Households receiving SNAP | 15.6%±14.5 pts | 29.3% | – |
| Households with a computer | 93.8%±8.7 pts | 93.5% | – |
| Households with a broadband subscription | 90.6%±10.8 pts | 81.5% | – |
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 Iliamna?
Owners occupy 81.3% of Iliamna's occupied homes and renters 18.8%. The median owner-occupied home is valued at $330,000 by its owner (±$56,857).
| Measure | Iliamna | Lake and Peninsula Borough | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $330,000±$56,857 | $237,500 | no clear change |
| Renters paying 35% or more of income on rent | 100.0%±100.0 pts | 31.4% | – |
| Median monthly owner costs, with a mortgage | $2,167±$636 | $1,375 | – |
| Owner-occupied homes | 81.3%±15.4 pts | 65.4% | no clear change |
| Renter-occupied homes | 18.8%±15.4 pts | 34.6% | – |
| Housing units | 58±13 | 1,336 | no clear change |
| Homeowner vacancy rate | 0.0%±51.0 pts | 0.5% | – |
| Rental vacancy rate | 25.0%±30.4 pts | 22.9% | – |
| Single-family detached homes | 86.2%±9.2 pts | 91.8% | – |
| Mobile homes | 1.7%±3.2 pts | 1.1% | – |
| Built 2020 or later | 3.4%±5.3 pts | 0.1% | – |
| Built 2010 to 2019 | 0.0%±33.4 pts | 9.6% | – |
| Built 1939 or earlier | 1.7%±2.7 pts | 1.6% | – |
| Households with no vehicle | 12.5%±11.8 pts | 43.5% | – |
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 Iliamna work and get to work?
66.7% of Iliamna's workers drive alone. The unemployment rate in 2020-2024 averaged 23.5%.
| Measure | Iliamna | Lake and Peninsula Borough | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 60.7%±17.2 pts | 77.7% | – |
| Unemployment rate | 23.5%±15.2 pts | 8.6% | – |
| Drove alone to work | 66.7%±22.2 pts | 42.1% | – |
| Carpooled | 20.8%±22.6 pts | 5.1% | – |
| Public transportation | 0.0%±53.1 pts | 0.0% | – |
| Walked | 8.3%±12.5 pts | 25.4% | – |
| Worked from home | 0.0%±53.1 pts | 8.1% | – |
| Mean travel time to work | 16.9 min±13.8 | 13.3 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
What census tracts are in Iliamna?
No census tract lies mostly in Iliamna; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 1Lake and Peninsula Borough | 1,013 | $65,625 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Iliamna) · Census block assignment files
How does Iliamna compare with other places in Alaska?
Iliamna is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
Iliamna's figures with every place in Alaska (CSV)
Every place in Alaska, sortable · Compare Iliamna with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Iliamna?
25 of the 56 figures for Iliamna 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.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. 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 · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Iliamna are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.