Princeton, ID Demographics

Population 779 · Census ACS 2020–24

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Princeton, ID map of median age by neighborhood
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Population and households in Princeton

Household size in Princeton

Household size, people per household
PeriodPrincetonIdahoU.S.
2006–102.452.722.68
2010–142.492.782.73
2015–193.012.762.71
2020–242.652.792.65
Change+0.21+0.07−0.03
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At 2.65 people per household, Princeton sits right at the national average. The typical household here is smaller than in Idaho overall, where it has 2.79 people. Household size has climbed from 2.45 in 2006–10, but in a place this small, much of that may be survey noise rather than real change.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in Princeton

Median age, years
PeriodPrincetonIdahoU.S.
2006–1047.335.537.7
2010–1445.036.638.6
2015–1942.937.639.6
2020–2447.838.240.1
Change+0.5+2.7+2.3
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With a median age of 47.8, Princeton is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in Princeton

Single-parent households, % of households
PeriodPrincetonIdahoU.S.
2006–102.3%10.0%12.3%
2010–145.1%10.2%12.3%
2015–1911.0%9.3%11.6%
2020–243.3%9.3%11.6%
Change+1.0 pts−0.7 pts−0.6 pts
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Single parents head only 3.3% of households in Princeton, well below the national share of 11.6%.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in Princeton

Renters in Princeton

Renters, % of occupied homes
PeriodPrincetonIdahoU.S.
2006–1016.9%29.0%33.3%
2010–1415.3%30.8%35.6%
2015–1915.0%30.0%36.0%
2020–243.3%27.9%34.8%
Change−13.6 pts−1.1 pts+1.5 pts
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Only 3.3% of households in Princeton rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About half of owners (51.3%) have paid off their mortgages, well above the national share of 39.8%.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in Princeton

Vacant homes, % of all homes
PeriodPrincetonIdahoU.S.
2006–1010.0%10.4%11.4%
2010–147.8%11.0%11.4%
2015–1910.3%10.5%11.1%
2020–2418.6%9.3%9.6%
Change+8.5 pts−1.1 pts−1.8 pts
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Vacancy is high in Princeton: 18.6% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in Princeton

Age of homes, median year built
PeriodPrincetonIdahoU.S.
2006–10197619821974
2010–14197519841975
2015–19198019861977
2020–24198219891980
Change+6+7+6
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The typical home in Princeton was built around 1982, about the same vintage as the country's housing overall (1980). Homes here are older than in Idaho as a whole, where the median home dates to 1989.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in Princeton

Rent, per month
PeriodPrincetonIdahoU.S.
2006–10$541$766$965
2010–14$996$820$1,040
2015–19$764$941$1,213
2020–24$694$1,407$1,571
Change+$154+$641+$606
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A typical rental in Princeton costs $694 a month with utilities, well below the national median of $1,571. Rent takes 16.1% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in Princeton

Bachelor's degrees in Princeton

Bachelor's degrees, % of adults 25+
PeriodPrincetonIdahoU.S.
2006–1016.6%25.0%28.4%
2010–1423.0%25.9%29.6%
2015–1926.5%27.8%32.1%
2020–2427.0%31.7%35.6%
Change+10.4 pts+6.6 pts+7.2 pts
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More than a quarter of adults 25 and older in Princeton (27.0%) have a bachelor's degree or higher, below the national share of 35.6%.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in Princeton

High school graduates, % of adults 25+
PeriodPrincetonIdahoU.S.
2006–1083.0%88.7%84.9%
2010–1492.7%89.3%86.1%
2015–1996.2%90.8%87.7%
2020–2497.2%92.1%89.3%
Change+14.2 pts+3.4 pts+4.3 pts
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Finishing high school is nearly universal in Princeton: 97.2% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in Princeton

Unemployment, % of the labor force
PeriodPrincetonIdahoU.S.
2006–105.6%7.0%8.1%
2010–143.5%8.1%9.4%
2015–190.6%4.4%5.6%
2020–247.6%3.8%5.4%
Change+2.0 pts−3.2 pts−2.7 pts
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Unemployment in Princeton runs well above the national rate: 7.6% of the labor force was out of work and looking, against 5.4%. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

Princeton compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Princeton2.6547.83.3%3.3%18.6%1982$69427.0%97.2%7.6%
Onaway2.3439.39.8%15.3%5.5%1938$75822.2%90.6%8.9%
Harvard2.6547.33.0%3.2%23.1%1979$69222.2%96.8%9.5%
Potlatch2.4745.96.7%12.4%4.9%1965$72729.1%94.0%6.9%
Potlatch Junction2.6052.43.5%8.8%4.1%1992$69736.7%97.5%4.6%
Viola2.7050.43.2%1.6%7.7%1996$70141.9%99.3%1.9%
Troy2.4850.12.5%10.7%6.8%1975$99337.6%98.0%2.7%
Palouse2.4243.23.6%17.6%9.1%1946$92243.4%98.3%0.4%
Moscow2.3132.19.4%53.5%9.8%1982$97949.0%96.1%7.4%
Cornwall2.4151.93.2%6.8%9.6%1972$93845.9%98.0%1.5%
Deary2.2546.32.1%10.8%9.3%1977$1,16728.7%94.7%0.6%

All figures 2020–24.

Cities with similar populations: Mountain Hill, GA · Quaker Springs, NY · Put-in-Bay, OH · Pulaskiville, OH · Pritchett, TX · Pratts, VA · Pine Grove, TX · Ottawa, OK · Oaks Corners, NY · Newtonville, NJ

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Princeton. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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