Nampa is home to 110,319 people in Idaho. The population has more than doubled since 2000, adding 58,452 people. This skews young, with a median age of 33.9. Four-year degrees are less common here than nationally, at 23% of adults. There are 3,173 people per square mile. The foreign-born share is 8%.
At a glance
Lower income
median household income $74,279, below the US median
US median: $82,259
Younger
median age 33.9
US median: 38.9
Less educated
23% hold a bachelor's degree
US average: 36%
Less affordable
home values up 126%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Nampa
What changed most since 1990
Population28,365 → 110,319(+289%)US over the same years: +35%
Median home value (2024 dollars)$108,723 → $370,800(+241%)US over the same years: +67%
Homes owned by their occupants60.6% → 70.2%(+9.6 pts)US over the same years: +0.9 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)26.8%(1,785)
US avg: 26.4%
Gulf War (1990s)23%(1,530)
US avg: 24.3%
Vietnam era32.7%(2,177)
US avg: 33.1%
Korean War2.7%(181)
US avg: 4.5%
World War II0.8%(55)
US avg: 1%
Share of the 6,652 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Nampa, decade by decade
Nampa population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
28,365
$47,272
$108,723
10.7%
32.8
2000
51,867
$63,317
$163,767
16.0%
44.5
2010
81,557
$61,423
$206,723
16.8%
52.3
2020
100,200
$64,487
$232,469
19.9%
60.5
2024
110,319
$74,279
$370,800
23.4%
59.9
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
