Nampa, Idaho Population 2020

101,410
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Nampa is a city located in Idaho. With a 2020 population of 101,410, it is the 3rd largest city in Idaho (after Boise and Meridian) and the 313th largest city in the United States. Nampa is currently growing at a rate of 2.61% annually and its population has increased by 24.34% since the most recent census, which recorded a population of 81,557 in 2010. Spanning over 33 miles, Nampa has a population density of 3,090 people per square mile.

The average household income in Nampa is $53,093 with a poverty rate of 17.79%. The median rental costs in recent years comes to $874 per month, and the median house value is $149,700. The median age in Nampa is 31.9 years, 31.2 years for males, and 32.7 years for females. For every 100 females there are 98.7 males.

Nampa Demographics

According to the most recent ACS, the racial composition of Nampa was:

  • White: 84.55%
  • Other race: 8.46%
  • Two or more races: 3.82%
  • Native American: 1.14%
  • Asian: 1.08%
  • Black or African American: 0.53%
  • Native Hawaiian or Pacific Islander: 0.42%
The current population of Nampa, Idaho is 101,410, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 96,252.The last official US Census in 2010 recorded the population at 81,557.

Nampa, Idaho Population 2020

Population by Race

Race Population Percentage
White77,50284.55%
Some Other Race7,7518.46%
Two or More Races3,4983.82%
American Indian and Alaska Native1,0491.14%
Asian9931.08%
Black or African American4890.53%
Native Hawaiian and Other Pacific Islander3810.42%
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Nampa Population Pyramid 2020

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Nampa Median Age

31.9


Total

31.2


Male

32.7


Female

Nampa Adults

There are 64,664 adults, (11,198 of whom are seniors) in Nampa.

Nampa Age Dependency

71.4

Age Dependency Ratio

20.9

Old Age Dependency Ratio

50.5

Child Dependency Ratio

Nampa Sex Ratio

Female

46,128

50.32%

Male

45,535

49.68%

Nampa Households and Families

Nampa Renter vs Owner Occupied by Household Type

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Nampa Household Types

Type Owner Renter
Married72.4%27.6%
All61.5%38.5%
Male57.1%42.9%
Non Family53.8%46.2%
Female41.4%58.6%

61.5%

Rate of Home Ownership

Type Count Average Size Owned
All31,5852.8461.5
Married15,4863.672.4
Non Family10,7871.3253.8
Female3,9153.7241.4
Male1,3973.7557.1

3.52

Average Family Size

2.84

Average Household Size

5.7%

Unmarried (Opposite Sex)

0.4%

Unmarried (Same Sex)

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Nampa Education

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Education Attained Count Percentage
Less Than 9th Grade3,0535.57%
9th to 12th Grade4,6568.49%
High School Graduate17,72132.33%
Some College14,89027.16%
Associates Degree4,2577.77%
Bachelors Degree7,04812.86%
Graduate Degree3,1945.83%
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Nampa Educational Attainment by Race

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Name Total High School Bachelors
White42,64939,2269,316
Hispanic9,8125,791465
Other Race3,3161,56093
Multiple Races1,2921,148149
Asian755647209
Native American50031889
Black372341109
Islander126126

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among black people with a rate of 29.30%.

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Name Average Male Female
Overall$29,472$33,681$24,531
Less Than High School$22,058$26,305$17,422
High School Grad$28,868$32,484$21,975
Some College$27,638$35,027$23,921
Bachelors Degree$34,373$47,558$31,157
Graduate Degree$47,143$47,901$46,806

$29,472

Average Earnings

$33,681

Average Male

$24,531

Average Female

Nampa Language

Nampa Language by Age

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Nampa Language

83.61% of Nampa residents speak only English, while 16.39% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 13.87% of the population.

Nampa Poverty

Nampa Poverty by Race

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Name Total In Poverty Poverty Rate
White63,8829,55214.95%
Hispanic21,6045,47625.35%
Other7,7511,97325.45%
Multiple3,47269620.05%
Native1,03330329.33%
Black46413729.53%
Asian98611111.26%
Islander3504212.00%

17.79%

Overall Poverty Rate

16.93%

Male Poverty Rate

18.65%

Female Poverty Rate

Poverty in Nampa

The race most likely to be in poverty in Nampa is Black, with 29.53% below the poverty level.

The race least likely to be in poverty in Nampa is Asian, with 11.26% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 5.69%. Among those working part-time, it was 23.13%, and for those that did not work, the poverty rate was 24.30%.

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Name Poverty
Less Than High School25.75%
High School17.99%
Some College11.31%
Bachelors or Greater5.22%
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Name Poverty
Male Unemployed39.92%
Female Unemployed37.73%
Female Employed11.25%
Male Employed9.83%

Nampa Income

Nampa Income by Household Type

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Name Median Mean
Households$44,691$53,093
Families$52,461$61,159
Married Families$61,772-
Non Families$27,839$34,312
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Nampa Marital Status

Nampa Marital Status

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Marriage Rates

48.9%

Overall Marriage Rate

49.5%

Male Marriage Rate

48.4%

Female Marriage Rate

Nampa Married by Age and Sex

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Nampa Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Nampa Marital Status by Race

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Nampa Veterans

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5,694

Number of Veterans

5,310

Male Veterans

384

Female Veterans

War Veterans
Vietnam2,140
Second Gulf War1,098
First Gulf War1,074
Korea370
World War II133
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Age Group Veterans
65 to 741,586
35 to 541,544
55 to 641,099
75+903
18 to 34562
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Name Veterans % of Total
White5,3469.55%
Hispanic4083.21%
2 or More17810.46%
Other821.78%
Indian558.65%
Asian182.16%
Black153.28%

Nampa Veterans by Education

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8.61%

Veteran Poverty Rate

29.52%

Veteran Disability Rate

Nampa Employment Status

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64.3%

Labor Force Participation

59.9%

Employment Rate

6.5%

Unemployment Rate

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Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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48.98%

Born in Idaho

92.46%

Native Born

7.54%

Foreign Born

4.58%

Non Citizen

2.96%

Naturalized

Place of Birth

92.46% of Nampa residents were born in the United States, with 48.98% having been born in Idaho. 4.58% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
2020101,4102,5792.61%
201998,8312,5792.68%
201896,2522,6212.80%
201793,6312,5792.83%
201691,0521,5581.74%
201589,4941,6181.84%
201487,8761,5251.77%
201386,3512,4422.91%
201283,9091,2341.49%
201182,6757140.87%
201081,96130,0944.68%
200051,86723,5026.22%
199028,3653,2531.23%
198025,1124,3441.92%
197020,7681,8710.95%
196018,8972,7121.56%
195016,1854,0362.91%
194012,1493,9434.00%
19308,2065850.74%
19207,6213,4166.13%
19104,2053,80526.52%
19004000.00%