City · Iowa
Salix, Iowa
Salix, city, in Woodbury County, Iowa. Salix had 305 residents on July 1, 2025 by the Census Bureau's estimate, up 1.3% since 2020; the 2020 Census counted 295 and the ACS 2020-2024 5-year estimates put it at 402 (±109). GEOID 1970320.
Residents, July 2025 estimate
305
Census Bureau estimate (no margin published)
2020 Census count: 295 · ACS 2020-2024: 402 ±109
Median household income
$62,500
±$19,991 (90% margin)
Iowa: $75,059
Median home value
$161,400
±$39,644 (90% margin)
Iowa: $208,000
Median gross rent
$950
±$207 (90% margin)
Iowa: $972
Where is Salix and what county is it in?
Salix is a city in Woodbury County, Iowa. It covers 1.7 square miles of land, 174 residents per square mile in 2020.
Salix is in the Sioux City, IA-NE-SD metropolitan statistical area, which takes in 3 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Salix, and is it growing?
The Census Bureau estimates that 305 people lived in Salix on July 1, 2025, up 1.3% since 2020, in line with Iowa (+1.5%). The 2020 Census counted 295 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 402 (±109).
| Measure | Salix | Woodbury County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 402 ±109 | 106,247 | no clear change |
| Households | 172 ±40 | 40,699 | no clear change |
| Average household size | 2.34 ±0.44 | 2.54 | no clear change |
| Housing units | 180 ±40 | 43,388 | no clear change |
Salix's population since 2000
From 370 in 2000 to 305 in 2025: down 17.6%. The 2000, 2010 and 2020 figures are census counts, each for Salix as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
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 Salix?
The median resident of Salix is 43.5 years old; 26.9% are under 18 and 20.9% are 65 or older. The largest group is non-Hispanic white residents at 97.5%, then Hispanic or Latino residents (of any race) at 1.7%.
| Measure | Salix | Woodbury County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 43.5 ±11.6 | 36.1 | no clear change |
| Under 18 years | 26.9% ±8.4 pts | 25.8% | – |
| 65 years and over | 20.9% ±8.3 pts | 15.9% | – |
| Male | 51.0% ±7.6 pts | 50.5% | – |
| Hispanic or Latino (any race) | 1.7% ±2.7 pts | 19.1% | – |
| White alone, not Hispanic | 97.5% ±3.0 pts | 67.1% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±6.0 pts | 4.9% | – |
| Asian alone, not Hispanic | 0.0% ±6.0 pts | 2.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.6 pts | 1.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±6.0 pts | 0.7% | – |
| Two or more races, not Hispanic | 0.5% ±0.7 pts | 4.3% | – |
| Some other race alone, not Hispanic | 0.0% ±6.0 pts | 0.2% | – |
| Born outside the United States | 0.0% ±6.0 pts | 10.6% | – |
| Speak a language other than English at home (age 5+) | 1.3% ±2.1 pts | 18.5% | – |
| Civilian veterans (age 18+) | 10.2% ±6.3 pts | 5.7% | – |
| With a disability | 16.2% ±7.3 pts | 13.5% | – |
| No health insurance coverage | 2.0% ±2.1 pts | 7.3% | – |
| High school graduate or higher (age 25+) | 96.9% ±2.9 pts | 87.6% | – |
| Bachelor's degree or higher (age 25+) | 13.1% ±6.1 pts | 24.3% | no clear change |
| Graduate or professional degree (age 25+) | 5.8% ±4.2 pts | 8.4% | – |
| Lived in the same house a year earlier | 89.3% ±8.3 pts | 91.4% | – |
| Moved from another state in the past year | 2.2% ±2.6 pts | 2.3% | – |
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 Salix earn?
Half of Salix's 172 households earn less than $62,500 a year (±$19,991), against $73,658 in Woodbury County and $75,059 in Iowa. In 2015-2019 it was $77,944 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Salix | Woodbury County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $62,500 ±$19,991 | $73,658 | no clear change |
| Mean household income | $75,967 ±$13,478 | $90,682 | – |
| Per capita income | $33,830 ±$5,587 | $35,564 | no clear change |
| People below the poverty line | 1.7% ±2.0 pts | 14.0% | – |
| Children under 18 below the poverty line | 0.0% ±20.7 pts | 18.0% | – |
| Households receiving SNAP | 7.6% ±6.4 pts | 12.6% | – |
| Households with a computer | 92.4% ±6.9 pts | 94.0% | – |
| Households with a broadband subscription | 89.0% ±8.4 pts | 87.3% | – |
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 Salix?
Owners occupy 65.1% of Salix's occupied homes and renters 34.9%. The median owner-occupied home is valued at $161,400 by its owner (±$39,644). The median renter pays $950 a month including utilities.
| Measure | Salix | Woodbury County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $161,400 ±$39,644 | $183,200 | no clear change |
| Median gross rent | $950 ±$207 | $981 | no clear change |
| Renters paying 35% or more of income on rent | 8.6% ±8.9 pts | 36.4% | – |
| Median monthly owner costs, with a mortgage | $1,115 ±$185 | $1,428 | – |
| Owner-occupied homes | 65.1% ±13.9 pts | 68.2% | no clear change |
| Renter-occupied homes | 34.9% ±13.9 pts | 31.8% | – |
| Housing units | 180 ±40 | 43,388 | no clear change |
| Homeowner vacancy rate | 0.0% ±19.9 pts | 1.0% | – |
| Rental vacancy rate | 0.0% ±32.7 pts | 5.1% | – |
| Single-family detached homes | 82.8% ±10.9 pts | 72.2% | – |
| Mobile homes | 6.7% ±5.0 pts | 3.5% | – |
| Built 2020 or later | 0.0% ±12.9 pts | 1.2% | – |
| Built 2010 to 2019 | 2.8% ±2.6 pts | 5.1% | – |
| Built 1939 or earlier | 37.8% ±11.7 pts | 30.7% | – |
| Households with no vehicle | 0.0% ±13.5 pts | 6.1% | – |
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 many new homes is Salix building?
Builders took permits for 1 new housing units in Salix in 2025 (1 in single-family houses), 3.3 per 1,000 residents against 4.2 across Iowa.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Salix work and get to work?
77.6% of Salix's workers drive alone and 15.7% work from home. The average trip to work takes 18.7 minutes.
| Measure | Salix | Woodbury County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 71.8% ±9.2 pts | 67.2% | – |
| Unemployment rate | 2.8% ±4.9 pts | 4.1% | – |
| Drove alone to work | 77.6% ±7.5 pts | 79.5% | – |
| Carpooled | 5.7% ±5.2 pts | 11.2% | – |
| Public transportation | 0.0% ±11.2 pts | 1.1% | – |
| Walked | 1.0% ±1.6 pts | 1.9% | – |
| Worked from home | 15.7% ±7.6 pts | 5.6% | – |
| Mean travel time to work | 18.7 min ±1.3 | 18.1 min | no clear change |
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 Salix?
No census tract lies mostly in Salix; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 35Woodbury County | 3,824 | $85,758 |
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 Salix) · Census block assignment files
How does Salix compare with other places in Iowa?
By the Census Bureau's July 2025 estimates, Salix is the 15,099th-most populous of the 19,476 U.S. incorporated places that have one and the 559th-most populous of 939 in Iowa.
Salix 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.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 559th | 939 |
Salix's figures with every place in Iowa (CSV)
Every place in Iowa, sortable · Compare Salix 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 Salix?
26 of the 57 figures for Salix 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 Salix 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' public schools in Salix.