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Arnold, MO

20,956 Population
11.5 square miles 1,817.8 people per square mile

Census data: ACS 2024 5-year unless noted

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Demographics

39.7 ±2.5 Median age
  • about the same as the figure in the St. Louis, MO-IL Metro Area: 39.9 ±0.1
  • about the same as the figure in Missouri: 39 ±0.2
  • about the same as the figure in United States: 38.9 ±0.1

Economics

$37,598 ±$2,682 Per capita income
  • about 80 percent of the amount in the St. Louis, MO-IL Metro Area: $45,864 ±$341
  • a little less than the amount in Missouri: $39,695 ±$221
  • about 80 percent of the amount in United States: $44,673 ±$122
$78,370 ±$6,883 Median household income
  • about the same as the amount in the St. Louis, MO-IL Metro Area: $80,196 ±$701
  • about 10 percent higher than the amount in Missouri: $70,702 ±$325
  • a little less than the amount in United States: $80,734 ±$166

8.2% ±3.2% (1,698  ±672) Persons below poverty line
  • about 80 percent of the rate in the St. Louis, MO-IL Metro Area: 10.5% 288,411 (±0.3% / ±7,791)
  • about two-thirds of the rate in Missouri: 12.6% 757,180 (±0.2% / ±12,002)
  • about two-thirds of the rate in United States: 12.5% 40,735,660 (±0.1% / ±275,861)

27.3 minutes ±1.4 (270,670  ±22,433) Mean travel time to work
  • about 10 percent higher than the figure in the St. Louis, MO-IL Metro Area: 24.9 29,218,560 (±0.2 / ±265,717)
  • about 20 percent higher than the figure in Missouri: 23.5 60,610,180 (±0.1 / ±367,091)
  • a little higher than the figure in United States: 26.4 3,569,606,700 (±0 / ±5,719,373)

Families

8,394 ±341 Number of households
  • the St. Louis, MO-IL Metro Area: 1,160,386 ±3,136
  • Missouri: 2,508,227 ±6,821
  • United States: 129,227,496 ±209,365
2.5 ±0.1 (20,870  ±48) Persons per household
  • a little higher than the figure in the St. Louis, MO-IL Metro Area: 2.4 2,753,388 (±0 / ±453)
  • a little higher than the figure in Missouri: 2.4 6,028,070
  • about the same as the figure in United States: 2.5 326,722,430

4% ±2% (188  ±95) Women 15-50 who gave birth during past year
  • about 80 percent of the rate in the St. Louis, MO-IL Metro Area: 4.9% 31,839 (±0.2% / ±1,447)
  • about three-quarters of the rate in Missouri: 5.4% 75,813 (±0.2% / ±2,448)
  • about 80 percent of the rate in United States: 5.1% 4,009,203 (±0% / ±20,898)

Housing

8,982 ±329 Number of housing units
  • the St. Louis, MO-IL Metro Area: 1,273,302 ±326
  • Missouri: 2,825,287 ±1,043
  • United States: 143,775,360 ±10,234

$220,000 ±$8,959 Median value of owner-occupied housing units
  • about 90 percent of the amount in the St. Louis, MO-IL Metro Area: $244,800 ±$1,415
  • a little less than the amount in Missouri: $230,300 ±$880
  • about two-thirds of the amount in United States: $332,700 ±$236

7.8% ±2.2% (1,620  ±465.3) Moved since previous year
  • about two-thirds of the rate in the St. Louis, MO-IL Metro Area: 11.4% 316,977 (±0.3% / ±7,177.6)
  • about three-fifths of the rate in Missouri: 12.6% 773,364 (±0.2% / ±10,610.2)
  • about three-fifths of the rate in United States: 12.3% 40,747,183 (±0% / ±136,530.8)

Social

90.7% ±5.2% (14,049  ±922.6) High school grad or higher
  • a little less than the rate in the St. Louis, MO-IL Metro Area: 93.6% 1,840,791 (±0.5% / ±10,454.6)
  • about the same as the rate in Missouri: 91.9% 3,897,379 (±0.3% / ±14,557)
  • about the same as the rate in United States: 89.6% 206,814,894 (±0.1% / ±283,951.7)
25.4% ±3% (3,932  ±483.4) Bachelor's degree or higher
  • about two-thirds of the rate in the St. Louis, MO-IL Metro Area: 38.2% 750,935 (±0.3% / ±6,330)
  • about 80 percent of the rate in Missouri: 32.4% 1,374,703 (±0.2% / ±8,698.6)
  • about two-thirds of 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

5.3% ±1.5% (1,107  ±308) Foreign-born population
  • about the same as the rate in the St. Louis, MO-IL Metro Area: 5.2% 146,100
  • about 20 percent higher than the rate in Missouri: 4.5% 277,967
  • about two-fifths of the rate in United States: 14.1% 47,349,080

6.3% ±1.7% (1,046  ±280) Population with veteran status
  • about 90 percent of the rate in the St. Louis, MO-IL Metro Area: 7.1% 155,770 (±0.1% / ±2,618)
  • about 90 percent of the rate in Missouri: 7.3% 347,543 (±0.1% / ±4,380)
  • about the same as the rate in United States: 6.2% 16,185,883 (±0% / ±45,251)
1,046 Total veterans ±280 981 Male ±273 65 Female ±57

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