Town · Wyoming
Guernsey, Wyoming
Guernsey, town, in Platte County, Wyoming. Guernsey had 1,104 residents on July 1, 2025 by the Census Bureau's estimate, down 2.0% since 2020; the 2020 Census counted 1,130 and the ACS 2020-2024 5-year estimates put it at 754 (±246). GEOID 5634320.
Residents, July 2025 estimate
1,104
Census Bureau estimate (no margin published)
2020 Census count: 1,130 · ACS 2020-2024: 754 ±246
Median household income
$50,114
±$23,453 (90% margin)
Wyoming: $76,176
Median home value
$224,300
±$69,292 (90% margin)
Wyoming: $309,700
Median gross rent
$1,037
±$567 (90% margin)
Wyoming: $992
Where is Guernsey and what county is it in?
Guernsey is a town in Platte County, Wyoming. It covers 1.0 square miles of land, 1,106 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 Guernsey, and is it growing?
The Census Bureau estimates that 1,104 people lived in Guernsey on July 1, 2025, down 2.0% since 2020, while Wyoming grew 2.1%. The 2020 Census counted 1,130 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 754 (±246).
| Measure | Guernsey | Platte County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 754 ±246 | 8,612 | no clear change |
| Households | 364 ±112 | 3,848 | no clear change |
| Average household size | 2.07 ±0.32 | 2.21 | no clear change |
| Housing units | 462 ±111 | 4,688 | no clear change |
Guernsey's population since 2000
From 1,147 in 2000 to 1,104 in 2025: down 3.7%. The 2000, 2010 and 2020 figures are census counts, each for Guernsey 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 Guernsey?
The median resident of Guernsey is 60.0 years old; 20.4% are under 18 and 40.2% are 65 or older. The largest group is non-Hispanic white residents at 76.1%, then Hispanic or Latino residents (of any race) at 12.9%.
| Measure | Guernsey | Platte County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 60.0 ±10.0 | 47.0 | +16.4 |
| Under 18 years | 20.4% ±7.6 pts | 20.2% | – |
| 65 years and over | 40.2% ±11.0 pts | 27.1% | – |
| Male | 48.1% ±7.2 pts | 51.3% | – |
| Hispanic or Latino (any race) | 12.9% ±9.9 pts | 8.8% | – |
| White alone, not Hispanic | 76.1% ±10.9 pts | 85.0% | −14.4 pts |
| Black or African American alone, not Hispanic | 0.0% ±4.8 pts | 0.3% | – |
| Asian alone, not Hispanic | 0.0% ±4.8 pts | 0.0% | – |
| American Indian and Alaska Native alone, not Hispanic | 2.5% ±3.4 pts | 0.4% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±4.8 pts | 0.4% | – |
| Two or more races, not Hispanic | 8.5% ±5.0 pts | 4.9% | – |
| Some other race alone, not Hispanic | 0.0% ±4.8 pts | 0.1% | – |
| Born outside the United States | 5.6% ±7.8 pts | 0.6% | – |
| Speak a language other than English at home (age 5+) | 7.3% ±8.2 pts | 7.4% | – |
| Civilian veterans (age 18+) | 12.5% ±7.9 pts | 9.1% | – |
| With a disability | 27.5% ±12.1 pts | 16.8% | – |
| No health insurance coverage | 9.0% ±8.2 pts | 21.5% | – |
| High school graduate or higher (age 25+) | 88.0% ±10.0 pts | 92.9% | – |
| Bachelor's degree or higher (age 25+) | 13.5% ±6.8 pts | 20.7% | no clear change |
| Graduate or professional degree (age 25+) | 4.2% ±3.8 pts | 7.4% | – |
| Lived in the same house a year earlier | 94.6% ±4.2 pts | 94.5% | – |
| Moved from another state in the past year | 1.6% ±2.1 pts | 1.1% | – |
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 Guernsey earn?
Half of Guernsey's 364 households earn less than $50,114 a year (±$23,453), against $67,718 in Platte County and $76,176 in Wyoming.
| Measure | Guernsey | Platte County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $50,114 ±$23,453 | $67,718 | – |
| Mean household income | $70,487 ±$13,032 | $85,724 | – |
| Per capita income | $34,132 ±$6,126 | $39,225 | no clear change |
| People below the poverty line | 10.1% ±7.3 pts | 7.7% | – |
| Children under 18 below the poverty line | 10.6% ±15.8 pts | 2.2% | – |
| Households receiving SNAP | 14.6% ±12.9 pts | 4.9% | – |
| Households with a computer | 92.0% ±7.2 pts | 93.0% | – |
| Households with a broadband subscription | 75.0% ±13.3 pts | 80.7% | – |
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 Guernsey?
Owners occupy 81.6% of Guernsey's occupied homes and renters 18.4%. The median owner-occupied home is valued at $224,300 by its owner (±$69,292). The median renter pays $1,037 a month including utilities.
| Measure | Guernsey | Platte County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $224,300 ±$69,292 | $297,900 | no clear change |
| Median gross rent | $1,037 ±$567 | $781 | no clear change |
| Renters paying 35% or more of income on rent | 15.3% ±27.5 pts | 32.0% | – |
| Median monthly owner costs, with a mortgage | $1,196 ±$141 | $1,791 | – |
| Owner-occupied homes | 81.6% ±12.3 pts | 76.1% | no clear change |
| Renter-occupied homes | 18.4% ±12.3 pts | 23.9% | – |
| Housing units | 462 ±111 | 4,688 | no clear change |
| Homeowner vacancy rate | 0.0% ±11.8 pts | 0.0% | – |
| Rental vacancy rate | 9.5% ±15.7 pts | 5.8% | – |
| Single-family detached homes | 66.5% ±11.6 pts | 68.7% | – |
| Mobile homes | 27.1% ±12.1 pts | 21.4% | – |
| Built 2020 or later | 0.0% ±7.8 pts | 0.9% | – |
| Built 2010 to 2019 | 6.1% ±6.1 pts | 7.5% | – |
| Built 1939 or earlier | 16.5% ±7.7 pts | 15.2% | – |
| Households with no vehicle | 0.0% ±9.8 pts | 1.9% | – |
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 Guernsey building?
Builders took permits for 1 new housing units in Guernsey in 2025 (1 in single-family houses), 0.9 per 1,000 residents against 3.8 across Wyoming.
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 Guernsey work and get to work?
77.0% of Guernsey's workers drive alone. The average trip to work takes 7.2 minutes.
| Measure | Guernsey | Platte County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 35.1% ±11.5 pts | 52.4% | – |
| Unemployment rate | 8.9% ±9.3 pts | 4.6% | – |
| Drove alone to work | 77.0% ±18.2 pts | 77.9% | – |
| Carpooled | 0.0% ±18.9 pts | 7.7% | – |
| Public transportation | 0.0% ±18.9 pts | 0.1% | – |
| Walked | 15.2% ±15.2 pts | 3.9% | – |
| Worked from home | 7.9% ±10.4 pts | 8.2% | – |
| Mean travel time to work | 7.2 min ±2.6 | 15.8 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 Guernsey?
No census tract lies mostly in Guernsey; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9591Platte County | 2,407 | $72,350 |
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 Guernsey) · Census block assignment files
How does Guernsey compare with other places in Wyoming?
By the Census Bureau's July 2025 estimates, Guernsey is the 9,878th-most populous of the 19,476 U.S. incorporated places that have one and the 42nd-most populous of 99 in Wyoming.
Guernsey ranks 51st of 54 places in Wyoming with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 42nd | 99 |
| Growth 2020-2025 (PEP) | 36th | 42 |
| Residents per square mile | 24th | 56 |
| Median household income | 51st | 54 |
| Per capita income | 42nd | 56 |
| Median home value | 36th | 53 |
| Median gross rent | 16th | 48 |
| Bachelor's degree or higher | 49th | 54 |
| Median age | 1st | 56 |
| Owner-occupied share | 10th | 55 |
| Travel time to work | 56th | 56 |
Guernsey's figures with every place in Wyoming (CSV)
Every place in Wyoming, sortable · Compare Guernsey 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 Guernsey?
26 of the 57 figures for Guernsey 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 Guernsey 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 Guernsey.