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Four Mile township, Polk County, IA

11,559 Population
18.6 square miles 622.6 people per square mile

Census data: ACS 2024 5-year unless noted

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Demographics

38.1 ±3.8 Median age
  • a little higher than the figure in Polk County: 36.2 ±0.2
  • about the same as the figure in Iowa: 38.6 ±0.2
  • about the same as the figure in United States: 38.9 ±0.1

Economics

$44,031 ±$4,632 Per capita income
  • a little less than the amount in Polk County: $45,622 ±$752
  • about 10 percent higher than the amount in Iowa: $40,877 ±$247
  • about the same as the amount in United States: $44,673 ±$122
$99,375 ±$13,545 Median household income
  • about 20 percent higher than the amount in Polk County: $83,576 ±$1,283
  • about 1.3 times the amount in Iowa: $75,059 ±$418
  • about 25 percent higher than the amount in United States: $80,734 ±$166

7.9% ±3.9% (902  ±448) Persons below poverty line
  • about three-quarters of the rate in Polk County: 10.3% 50,969 (±0.6% / ±3,035)
  • about two-thirds of the rate in Iowa: 11.1% 344,519 (±0.2% / ±6,799)
  • about three-fifths of the rate in United States: 12.5% 40,735,660 (±0.1% / ±275,861)

22.3 minutes ±3.3 (115,860  ±21,970) Mean travel time to work
  • about 10 percent higher than the figure in Polk County: 20 4,465,015 (±0.3 / ±87,777)
  • about 10 percent higher than the figure in Iowa: 19.8 28,362,076 (±0.1 / ±233,595)
  • about 80 percent of the figure in United States: 26.4 3,569,606,700 (±0 / ±5,719,373)

Families

4,390 ±331 Number of households
  • Polk County: 205,358 ±1,156
  • Iowa: 1,315,707 ±3,984
  • United States: 129,227,496 ±209,365
2.6 ±0.3 (11,529  ±799) Persons per household
  • about 10 percent higher than the figure in Polk County: 2.4 494,416 (±0 / ±148)
  • about 10 percent higher than the figure in Iowa: 2.4 3,111,021
  • a little higher than the figure in United States: 2.5 326,722,430

8% ±3.9% (209  ±105) Women 15-50 who gave birth during past year
  • about 1.5 times the rate in Polk County: 5.5% 6,789 (±0.5% / ±668)
  • about 1.4 times the rate in Iowa: 5.7% 41,080 (±0.2% / ±1,625)
  • about 1.5 times the rate in United States: 5.1% 4,009,203 (±0% / ±20,898)

Housing

4,491 ±343 Number of housing units
  • Polk County: 218,486 ±136
  • Iowa: 1,437,699 ±523
  • United States: 143,775,360 ±10,234

$304,200 ±$17,511 Median value of owner-occupied housing units
  • about 20 percent higher than the amount in Polk County: $262,100 ±$3,486
  • about 1.5 times the amount in Iowa: $208,000 ±$1,141
  • about 90 percent of the amount in United States: $332,700 ±$236

10% ±3.8% (1,137  ±433.2) Moved since previous year
  • about two-thirds of the rate in Polk County: 14.3% 70,988 (±0.7% / ±3,455.8)
  • about 80 percent of the rate in Iowa: 12.9% 408,833 (±0.3% / ±7,883.1)
  • about 80 percent of the rate in United States: 12.3% 40,747,183 (±0% / ±136,530.8)

Social

98.5% ±4.5% (7,536  ±707.9) High school grad or higher
  • about 10 percent higher than the rate in Polk County: 92.5% 311,012 (±1.3% / ±4,464.1)
  • a little higher than the rate in Iowa: 93.3% 2,008,851 (±0.4% / ±9,325.6)
  • about 10 percent higher than the rate in United States: 89.6% 206,814,894 (±0.1% / ±283,951.7)
33.9% ±4.8% (2,594  ±423.3) Bachelor's degree or higher
  • about 80 percent of the rate in Polk County: 40.3% 135,414 (±0.8% / ±2,806.8)
  • about 10 percent higher than the rate in Iowa: 31.4% 676,908 (±0.3% / ±5,442.9)
  • a little less than the rate in United States: 35.7% 82,363,217 (±0.1% / ±182,857.7)

N/A Persons with language other than English spoken at home

1.4% ±1.2% (161  ±137) Foreign-born population
  • less than a fifth of the rate in Polk County: 10.1% 50,787
  • about one-quarter of the rate in Iowa: 5.9% 189,988
  • about 10 percent of the rate in United States: 14.1% 47,349,080

4.7% ±1.8% (395  ±157) Population with veteran status
  • about 80 percent of the rate in Polk County: 5.6% 21,413 (±0.3% / ±1,139)
  • about three-quarters of the rate in Iowa: 6.5% 160,571 (±0.1% / ±2,289)
  • about three-quarters of the rate in United States: 6.2% 16,185,883 (±0% / ±45,251)
395 Total veterans ±157 311 Male ±143 84 Female ±99

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