Nampa, ID Profile: Facts, Map & Data


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Nampa, Idaho - Basic Facts

The City of Nampa is the 3rd largest city in Idaho with a population of 93,215 as of July 1, 2018. Nampa ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Idaho. See peer rankings below.

The primary coordinate point for Nampa is located at latitude 43.5835 and longitude -116.5642 in Canyon County. The formal boundaries for the City of Nampa (see map below) encompass a land area of 31.05 sq. miles and a water area of 0.15 sq. miles. Canyon County is in the Mountain time zone (GMT -7). The elevation is 2,516 feet.

The City of Nampa (GNIS ID: 2411208) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Idaho is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Nampa is located within Nampa Division of Canyon County.

Beneath the boundary map are tables with Nampa population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

Alternate Unofficial Names for Nampa: New Jerusalem.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


City of Nampa, ID Boundary Map

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Boundary Maps: Nampa Division | Canyon County | Idaho Counties

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Nampa, ID Data & Demographics (As of July 1, 2018)


Total Population 93,215
Population in Households 91,588
Population in Familes 76,900
Population in Group Qrtrs 1,627
Population Density2 3,002
Diversity Index3 58


Median Household Income $45,936
Average Household Income $56,380
Per Capita Income $19,635


Total Housing Units 34,483 (100%)
Owner Occupied HU 19,953 (57.9%)
Renter Occupied HU 11,418 (33.1%)
Vacant Housing Units 3,112 ( 9.0%)
Median Home Value $154,944
Average Home Value $176,336


Total Households 31,371
Average Household Size 2.92
Family Households 22,342
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.71% 1.89%
Households 1.57% 1.79%
Families 1.4% 1.69%
Median Household Income   2.57%
Per Capita Income   2.91%

Nampa, ID - Peer Comparisons by Rank and Percentile

The table below compares Nampa to the other 227 incorporated cities, towns and CDPs in Idaho by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 3 99th
Population Density # 8 97th
Diversity Index # 43 81st
Median Household Income # 134 41st
Per Capita Income # 171 25th

Additional comparisons and rankings can be made with a VERY EASY TO USE Idaho Census Data Comparison Tool.

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