Declo demographics profile

Population density (sq mi)1,8431991
Median age28.335.737.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)63%60%55%
Families w/ Kids under 1854%45%43%
Speak English78%89%79%
Speak Spanish19%8%13%
Declo, ID has a population of 510 and is the 19,413th largest city in the United States. The population density is 1,843 per sq mi which is 9558% higher than the Idaho average and 1934% higher than the national average. The median age in Declo is 28 which is approximately 21% lower than the Idaho average of 36. In Declo, 63% of the population over 15 years of age are married, 78% speak English and 19% speak Spanish. 58% of Declo residents were born in Idaho, 28% were born out of state, 0% were born outside of the United States and 14% were foreign born.
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Did you know?

  • The population density in Declo is 9558% higher than Idaho.
  • The median age in Declo is 21% lower than Idaho.
  • In Declo 93.14% of the population is White.
  • In Declo 0.00% of the population is Black or African American.
  • In Declo 1.57% of the population is Asian.

Compare Declo, ID Demographics To Other Cities

Declo population breakdown by race

Black or African American0.00%0.64%12.63%
American Indian0.00%1.31%0.82%
Native Hawaiian0.00%0.12%0.18%
Mixed race0.00%2.57%3.06%
Other race5.29%2.74%4.75%
In Declo, 15.9% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Declo age breakdown

Marital status

Age of children in married couples

Source: The Declo, ID demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).
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