Population density (sq mi)1,5855791
Median age44.138.037.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)66%60%55%
Families w/ Kids under 1843%44%43%
Speak English88%92%79%
Speak Spanish9%4%13%

Key findings

  • The population density in Sibley is 2681% higher than Iowa
  • The median age in Sibley is 16% higher than Iowa
  • In Sibley 93.48% of the population is White
  • In Sibley 0.22% of the population is Black
  • In Sibley 0.79% of the population is Asian

Compare Sibley, IA Demographics


      Sibley population breakdown by race

      American Indian0.00%0.32%0.82%
      Native Hawaiian0.00%0.08%0.18%
      Mixed race1.35%1.97%3.06%
      Other race4.16%1.27%4.75%
      In Sibley, 9.8% 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.

      Household income distribution

      Place of birth by citizenship

      Sibley age breakdown

      Marital status

      Age of children in married couples

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