Polk County, IA Demographic Data

Polk County, IA Summary

Polk County is located in Iowa
  • Population: 443,710
  • Area: 591.54 sq. miles
    • Land Area: 573.80 sq. miles
    • Water Area: 17.74 sq. miles
  • Population Density: 750.09 people per sq. mile
  • Elevation: 892.39 ft
  • Time Zone: Central Standard Time (GMT -6)
  • Daylight Savings: Yes

Iowa Heat Map by County Population

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Polk County, IA Gender Breakdown

Gender
Number
Percent
National Avg
Female
240,906
51%
50.8
Male
233,139
49%
49.2
Total Population
474,045
 
323,128,000

Polk County, IA Age Breakdown

Age Group
Number
Percent
National Avg
Under 5 Years
34,791
7.3% 
6.1
5 to 9 Years
33,646
7.1% 
6.3
10 to 14 Years
32,065
6.8% 
6.4
15 to 19 Years
31,186
6.6% 
6.7
20 to 24 Years
29,317
6.2% 
6.9
25 to 34 Years
73,770
15.6% 
13.7
35 to 44 Years
64,040
13.5% 
12.6
45 to 54 Years
61,029
12.9% 
13.2
55 to 59 Years
27,365
5.8% 
6.7
60 to 64 Years
28,671
6.0% 
6.1
65 to 74 Years
34,611
7.3% 
8.9
75 to 84 Years
15,954
3.4% 
4.4
85 Years and Over
7,600
1.6% 
1.9
Age Statistics
Number
Percent
National Avg
18 Years and over
354,799
74.8%
77.2
Female
182,002
51.3%
51.3
Male
172,797
48.7%
48.7
21 Years and over
336,188
70.9%
73.1
62 Years and over
74,600
15.7%
18.8
65 Years and over
58,165
12.3%
15.2
Female
32,899
56.6%
55.8
Male
25,266
43.4%
44.2
Median Age (years)
35
0.0%
0.0

Polk County, IA Race Breakdown

Race
Number
Percent
National Avg
One Race
460,972
97.2% 
96.8
White
396,575
83.7% 
72.6
Black or African American
31,968
6.7% 
12.7
American Indian and Alaska Native
1,315
0.3% 
0.8
Asian
22,224
4.7% 
5.4
Asian Indian
4,569
1.0% 
1.2
Chinese
2,253
0.5% 
1.3
Filipino
1,393
0.3% 
0.9
Japanese
609
0.1% 
0.2
Korean
550
0.1% 
0.4
Vietnamese
1,894
0.4% 
0.6
Other Asian
10,956
2.3% 
0.8
Native Hawaiian and Other Pacific Islander
150
0.0% 
0.2
Native Hawaiian
 
0.1
Guamanian or Chamorro
 
0.0
Samoan
 
0.0
Other Pacific Islander
 
0.1
Some Other Race
8,740
1.8% 
5.1
Two or More Races
13,073
2.8% 
3.2
Hispanic Statistics
Number
Percent
National Avg
Hispanic or Latino (of any race)
38,925
8.2% 
17.8
Mexican
28,111
5.9% 
11.2
Puerto Rican
1,927
0.4% 
1.7
Cuban
324
0.1% 
0.7
Other Hispanic or Latino
8,563
1.8% 
4.2
Not Hispanic or Latino
435,120
91.8% 
82.2

Polk County, IA Educational Attainment

Education Level
Number
Percent
National Avg
Less than 9th grade
13,158
4.2% 
5.4
9th to 12th grade, no diploma
15,514
5.0% 
7.2
High school graduate (includes equivalent)
74,309
23.7% 
27.2
Some college, no degree
69,646
22.2% 
20.6
Associate's Degree
28,364
9.1% 
8.4
Bachelor's Degree
76,154
24.3% 
19.3
Graduate or professional degree
35,895
11.5% 
11.9
Education Summary
Number
Percent
National Avg
< High School Graduate
28,672
9.2%
12.6
High School Graduate or Higher
284,368
90.8%
87.4
Bachelor's Degree or Higher
112,049
35.8%
31.2

Polk County, IA Marital Status

Marital Status
Number
Percent
National Avg
Never Married
123,666
33.1%
33.7%
Now Married
178,620
47.8%
47.5
Divorced
49,181
13.2%
11.0%
Separated
4,336
1.2%
2.0
Widowed
17,740
4.7
5.8%

Polk County, IA Language Spoken at Home

Language
Number
Percent
National Avg
English Only
383,759
87.4%
78.4%
Languages other than english
55,495
12.6%
21.6%
Spanish
25,344
5.8%
13.3%
Other indo-european languages
13,434
3.1%
3.7%
Asian and Pacific islander languages
11,323
2.6%
3.5%
Other Languages
5,394
1.2%
1.1%

Polk County, IA Household Income

Household Income
Number
Percent
National Avg
Less than $10,000
8,557
4.7%
6.7
$10,000 to $14,999
5,961
3.3%
4.8
$15,000 to $24,999
15,527
8.5%
9.7
$25,000 to $34,999
16,543
9.1%
9.5
$35,000 to $49,999
25,314
13.9%
13.0
$50,000 to $74,999
34,125
18.7%
17.7
$75,000 to $99,999
27,122
14.9%
12.3
$100,000 to $149,000
27,902
15.3%
14.0
$150,000 to $199,999
11,045
6.1%
5.8
$200,000 or more
10,441
5.7%
6.4
Median household income
64,067
 
57,617
Per capita income
32,885
 
31,128

Polk County, IA Employment Breakdown

Industry
Number
Percent
National Avg
Agriculture, forestry, fishing, hunting and mining
3,037
1.2%
1.7
Arts, entertainment, recreation, accommodation and food services
22,273
8.8%
9.8
Construction
16,639
6.6%
6.4
Educational services, health care and social assistance
49,317
19.4%
23.0
Finance, insurance, real estate, rental, and leasing
40,852
16.1%
6.6
Information
4,923
1.9%
2.1
Manufacturing
17,941
7.1%
10.1
Other services except public administration
12,364
4.9%
4.9
Professional, scientific, management, administrative and waste management services
26,059
10.3%
11.4
Public administration
9,313
3.7%
4.6
Retail trade
29,859
11.8%
11.5
Transportation, warehousing and utilities
12,217
4.8%
5.2
Wholesale trade
9,101
3.6%
2.7
Occupation
Number
Percent
National Avg
Construction, extraction, maintenance, and repair occupations
20,317
8.0%
8.8%
Management, professional, and related occupations
102,962
40.6%
37.6%
Production, transportation, and material moving occupations
26,459
10.4%
12.2%
Sales and office occupations
62,463
24.6%
23.3%
Service occupations
41,694
16.4%
18.1%

Polk County, IA Commute Statistics

Commute Type
Number
Percent
National Avg
Workers 16 Years and over
248,427
 
 
Car, truck, or van - drove alone
210,119
84.6%
76.3
Car, truck, or van - carpooled
17,871
7.2%
9.0
Public transportation (excluding taxicab)
3,801
1.5%
5.1
Walked
4,981
2.0%
2.7
Other means
2,396
1.0%
1.8
Worked at home
9,259
3.7%
5.0
Mean travel time to work (Minutes)
19.1
 
26.6

Polk County, IA Vehicles per Household

Vehicles per Household
Number
Percent
National Avg
None
10,891
6.0%
8.7
1 vehicles
56,841
31.1%
33.2
2 vehicles
75,174
41.2%
37.1
3 or more
39,631
21.7%
21.0

Polk County, IA Housing Occupancy

Housing Occupancy
Number
Percent
National Avg
Total Housing Units
 
 
Occupied Housing Units
182,537
92.8%
87.6
Owner Occupied
122,351
67.0%
63.1
Renter Occupied
60,186
33.0%
36.9
Vacant Housing Units
14,142
7.2%
12.4
Homeowner Vacancy Rate
1
0.0%
0.0
Rental Vacancy Rate
6
0.0%
0.0
Average household size of owner-occupied unit
2.7
0.0%
2.7
Average household size of renter-occupied unit
2.4
0.0%
2.5

Polk County, IA Rooms per Residence

Rooms per Residence
Number
Percent
National Avg
Total Housing Units
196,679
1 room
3,777
1.9%
2.4
2 rooms
7,083
3.6%
2.7
3 rooms
16,597
8.4%
9.1
4 rooms
36,737
18.7%
16.5
5 rooms
37,169
18.9%
19.8
6 rooms
30,070
15.3%
17.8
7 rooms
22,782
11.6%
12.0
8 rooms
16,438
8.4%
8.6
9 rooms or more
26,026
13.2%
11.1
Median Rooms
5
 
0.0

Polk County, IA Structure Type Statistics

Structure Type
Number
Percent
National Avg
Total Housing Units
196,679
 
 
1-unit, detached
128,787
65.5%
61.5
1-unit, attached
15,608
7.9%
5.9
2-units
2,122
1.1%
3.6
3 or 4 units
3,161
1.6%
4.4
5 to 9 units
8,115
4.1%
4.8
10 to 19 units
10,859
5.5%
4.4
20 or more units
24,281
12.3%
9.0
Mobile home
3,612
1.8%
6.2
Boat, RV, van, etc.
134
0.1%
0.1

Polk County, IA Housing Age Statistics

Housing Age
Number
Percent
National Avg
1939 or earlier
28,633
14.6%
12.8%
1940 to 1949
10,632
5.4%
5.0%
1950 to 1959
22,025
11.2%
10.4%
1960 to 1969
17,812
9.1%
10.7%
1970 to 1979
26,606
13.5%
15.3%
1980 to 1989
20,306
10.3%
13.5%
1990 to 1999
26,528
13.5%
13.9%
2000 to 2009
28,635
14.6%
14.2%
2010 to 2013
9,126
4.6%
2.8%
2014 or later
6,376
3.2%
1.4%

Polk County, IA Household Heating

Heating Fuel Type
Number
Percent
National Avg
Utility Gas
124,367
68.1%
48.1
Bottled, tank, or LP gas
3,736
2.0%
4.7
Electricity
51,993
28.5%
38.7
Fuel oil, kerosene, etc.
0
0.0%
4.8
Coal or coke
37
0.0%
0.1
Wood
486
0.3%
1.9
Solar energy
0
0.0%
0.1
Other fuel
1,328
0.7%
0.5
No fuel used
590
0.3%
1.1

Polk County, IA Mortgage Statistics

Mortgage Payments
Number
Percent
National Avg
Housing units with a mortgage
86,276
 
47295100.0
Less than $500
715
0.8%
1.6%
$3,000 or more
2,728
3.2%
10.3%
$2,500 to $2,999
3,151
3.7%
7.0%
$2,000 to $2,499
7,423
8.6%
11.8%
$500 to $999
16,870
19.6%
20.4%
$1,500 to $1,999
21,663
25.1%
20.1%
$1,000 to $1,499
33,726
39.1%
28.8%
Mortgage Payment as % of Income
Number
Percent
National Avg
Less than 20.0%
45,053
52.3%
45.4%
20.0% to 24.9%
14,596
16.9%
15.7%
25.0% to 29.9%
7,187
8.3%
10.6%
30.0% to 34.9%
6,763
7.9%
7.0%
35.0% or more
12,552
14.6%
21.3%
Not Computed
125
0.0%
0.0%

Polk County, IA Rent Statistics

Rent Payment Amount
Number
Percent
National Avg
Occupied Units Paying Rent
58,808 
 
41,631,300 
$2,500 to $2,999
221
0.4%
1.9%
$3,000 or more
386
0.7%
1.8%
$2,000 to $2,499
470
0.8%
4.4%
$1,500 to $1,999
2,084
3.5%
11.9%
Less than $500
4,098
7.0%
10.7%
$1,000 to $1,499
14,402
24.5%
28.3%
$500 to $999
37,147
63.2%
41.0%
No Cash Rent
1,378
0.0%
2,206,240
Median (Dollars)
850
0.0%
981
Rent Payment as % of Income
Number
Percent
National Avg
Less than 15.0%
8,234
14.2%
13.1%
15.0% to 19.9%
8,322
14.4%
12.9%
20.0% to 24.9%
8,232
14.2%
12.8%
25.0% to 29.9%
7,037
12.1%
11.5%
30.0% to 34.9%
4,514
7.8%
9.0%
35.0% or more
21,586
37.3%
40.7%
Not Computed
2,261
0.0%
0.0%

Polk County, IA Property Value

Property Type
Number
Percent
National Avg
Specified Owner-Occupied Units
122,351
 
75,022,600
Less then $50,000
4,923
4.0%
7.3%
$50,000 to $99,999
16,122
13.2%
7.3%
$100,000 to $149,000
26,598
21.7%
14.1%
$150,000 to $199,000
28,723
23.5%
14.5%
$200,000 to $299,999
27,790
22.7%
19.2%
$300,000 to $499,999
13,959
11.4%
18.2%
$500,000 to $999,999
3,610
3.0%
10.5%
$1,000,000 or more
626
0.5%
3.1%
Median (Dollars)
171,800
 
205,000