Population 132,530 · Census ACS 2020–24
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Population and households in Nampa
Household size in Nampa
| Period | Nampa | Boise area | Idaho | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.92 | 2.75 | 2.72 | 2.68 |
| 2010–14 | 2.99 | 2.79 | 2.78 | 2.73 |
| 2015–19 | 2.86 | 2.75 | 2.76 | 2.71 |
| 2020–24 | 2.84 | 2.71 | 2.79 | 2.65 |
| Change | −0.08 | −0.05 | +0.07 | −0.03 |
The typical household in Nampa holds 2.84 people, more than the U.S. average of 2.65. Since 2006–10, household size has edged down from 2.92, in line with the national trend. Households are largest in the southeast and smallest in the center.
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 Nampa
| Period | Nampa | Boise area | Idaho | U.S. |
|---|---|---|---|---|
| 2006–10 | 31.6 | 34.6 | 35.5 | 37.7 |
| 2010–14 | 33.0 | 35.8 | 36.6 | 38.6 |
| 2015–19 | 35.0 | 37.2 | 37.6 | 39.6 |
| 2020–24 | 36.2 | 38.4 | 38.2 | 40.1 |
| Change | +4.6 | +3.8 | +2.7 | +2.3 |
The median resident of Nampa is 36.2 years old, a few years younger than the national median of 40.1. The median age has climbed from 31.6 in 2006–10, mirroring the country. Residents skew youngest in the center and oldest in the northwest.
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 Nampa
| Period | Nampa | Boise area | Idaho | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.0% | 10.5% | 10.0% | 12.3% |
| 2010–14 | 13.2% | 10.4% | 10.2% | 12.3% |
| 2015–19 | 10.3% | 9.5% | 9.3% | 11.6% |
| 2020–24 | 11.6% | 9.3% | 9.3% | 11.6% |
| Change | −0.4 pts | −1.2 pts | −0.7 pts | −0.6 pts |
Single-parent households are just as common in Nampa as they are nationally: 11.6%. Single parents are more common here than in the Boise area as a whole (9.3%).
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 Nampa
Renters in Nampa
| Period | Nampa | Boise area | Idaho | U.S. |
|---|---|---|---|---|
| 2006–10 | 28.9% | 29.5% | 29.0% | 33.3% |
| 2010–14 | 32.8% | 31.9% | 30.8% | 35.6% |
| 2015–19 | 32.0% | 30.3% | 30.0% | 36.0% |
| 2020–24 | 26.5% | 27.5% | 27.9% | 34.8% |
| Change | −2.4 pts | −2.0 pts | −1.1 pts | +1.5 pts |
Just over a quarter of households in Nampa rent their homes (26.5%), below the national share of 34.8%; the rest own. About three in ten owners (29.2%) have paid off their mortgages, well below the national share of 39.8%. Renting is most common in the center and least common in the southeast. The renter share has fallen 2.4 points since 2006–10, even as the national share rose.
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 Nampa
| Period | Nampa | Boise area | Idaho | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.4% | 7.9% | 10.4% | 11.4% |
| 2010–14 | 8.5% | 7.2% | 11.0% | 11.4% |
| 2015–19 | 5.2% | 5.6% | 10.5% | 11.1% |
| 2020–24 | 4.8% | 5.6% | 9.3% | 9.6% |
| Change | −2.6 pts | −2.3 pts | −1.1 pts | −1.8 pts |
Only 4.8% of homes in Nampa are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is down 2.6 points from 2006–10, mirroring the country. Nampa has a lower vacancy rate than at least four in five Idaho cities.
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 Nampa
| Period | Nampa | Boise area | Idaho | U.S. |
|---|---|---|---|---|
| 2006–10 | 1990 | 1989 | 1982 | 1974 |
| 2010–14 | 1990 | 1989 | 1984 | 1975 |
| 2015–19 | 1990 | 1991 | 1986 | 1977 |
| 2020–24 | 1994 | 1996 | 1989 | 1980 |
| Change | +5 | +7 | +7 | +6 |
Much of the housing in Nampa is relatively new: half of its homes were built after 1994, compared with 1980 for the U.S. as a whole. The median year built has moved up from 1990 in 2006–10, a sign of steady new building. Newer construction is concentrated in the southwest, while the center has the oldest housing.
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 Nampa
| Period | Nampa | Boise area | Idaho | U.S. |
|---|---|---|---|---|
| 2006–10 | $851 | $884 | $766 | $965 |
| 2010–14 | $871 | $921 | $820 | $1,040 |
| 2015–19 | $997 | $1,075 | $941 | $1,213 |
| 2020–24 | $1,538 | $1,700 | $1,407 | $1,571 |
| Change | +$687 | +$815 | +$641 | +$606 |
The median renter in Nampa pays $1,538 a month for rent and utilities, close to the national median of $1,571. Rents here are lower than in the Boise area as a whole ($1,700). Rent has climbed $687 a month since 2006–10, up 81%, faster than rents rose nationally. Rent takes 27.7% of the typical renter's income, just 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 Nampa
Bachelor's degrees in Nampa
| Period | Nampa | Boise area | Idaho | U.S. |
|---|---|---|---|---|
| 2006–10 | 17.8% | 28.8% | 25.0% | 28.4% |
| 2010–14 | 18.0% | 30.0% | 25.9% | 29.6% |
| 2015–19 | 20.9% | 31.6% | 27.8% | 32.1% |
| 2020–24 | 25.1% | 36.9% | 31.7% | 35.6% |
| Change | +7.3 pts | +8.2 pts | +6.6 pts | +7.2 pts |
College degrees are relatively uncommon in Nampa: 25.1% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree has risen 7.3 points since 2006–10, as it has nationally. College graduates are most concentrated in the southwest and least in the center.
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 Nampa
| Period | Nampa | Boise area | Idaho | U.S. |
|---|---|---|---|---|
| 2006–10 | 84.7% | 89.5% | 88.7% | 84.9% |
| 2010–14 | 83.1% | 90.1% | 89.3% | 86.1% |
| 2015–19 | 87.6% | 91.7% | 90.8% | 87.7% |
| 2020–24 | 89.5% | 92.7% | 92.1% | 89.3% |
| Change | +4.8 pts | +3.2 pts | +3.4 pts | +4.3 pts |
High school completion in Nampa is close to the national rate: 89.5% of adults have a diploma or equivalent, against 89.3%. The rate is lower than in the wider Boise area (92.7%). The share with a diploma is up 4.8 points from 2006–10, as it has nationally.
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 Nampa
| Period | Nampa | Boise area | Idaho | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.8% | 7.7% | 7.0% | 8.1% |
| 2010–14 | 10.3% | 8.4% | 8.1% | 9.4% |
| 2015–19 | 5.2% | 4.3% | 4.4% | 5.6% |
| 2020–24 | 2.9% | 3.2% | 3.8% | 5.4% |
| Change | −6.8 pts | −4.5 pts | −3.2 pts | −2.7 pts |
Unemployment in Nampa has been low: just 2.9% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment is down 6.8 points from 2006–10, as it has nationally. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's 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).
Nampa compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Nampa | 2.84 | 36.2 | 11.6% | 26.5% | 4.8% | 1994 | $1,538 | 25.1% | 89.5% | 2.9% |
| Knowlton Heights | 2.93 | 35.0 | 9.1% | 11.1% | 3.9% | 1999 | $1,664 | 10.7% | 87.5% | 11.2% |
| Caldwell | 3.05 | 33.3 | 10.6% | 24.8% | 4.9% | 1995 | $1,433 | 21.6% | 84.3% | 4.4% |
| Sunnyslope | 2.41 | 36.6 | 12.1% | 7.8% | 8.7% | 2012 | $1,497 | 21.0% | 91.8% | 8.6% |
| Meridian | 2.82 | 37.7 | 7.9% | 24.8% | 5.6% | 2008 | $2,190 | 43.6% | 95.9% | 2.7% |
| Mora | 3.12 | 32.9 | 7.7% | 11.3% | 6.2% | 2007 | $2,304 | 35.0% | 95.7% | 1.4% |
| Star | 2.86 | 42.7 | 7.8% | 16.8% | 5.4% | 2011 | $2,183 | 35.9% | 97.3% | 6.9% |
| Middleton | 3.02 | 38.9 | 8.1% | 9.3% | 4.0% | 2005 | $1,215 | 26.2% | 93.6% | 5.4% |
| Kuna | 2.92 | 35.3 | 11.9% | 16.8% | 4.2% | 2003 | $1,720 | 25.1% | 92.0% | 1.9% |
| Marsing | 2.82 | 39.3 | 9.0% | 24.3% | 9.0% | 1989 | $875 | 14.7% | 75.6% | 0.6% |
| Melba | 3.05 | 38.7 | 5.2% | 18.0% | 5.4% | 1994 | $1,170 | 26.3% | 84.4% | 1.3% |
All figures 2020–24.
Cities with similar populations: Wichita Falls, TX · Yuma, AZ · Yukon, OK · West Valley City, UT · Whittier, CA · Wichita, KS · Vallejo, CA · Van Nuys, CA · Waterloo, IA · West Chester, PA
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 Nampa. 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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