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Polk County Population and Races

 
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As of 2010-2014, the total population of Polk County is 445,136, which is 18.83% more than it was in 2000. The population growth rate is much higher than the state average rate of 5.19% and is much higher than the national average rate of 11.61%. The Polk County population density is 752.51 people per square mile, which is much higher than the state average density of 54.70 people per square mile and is much higher than the national average density of 82.73 people per square mile. The most prevalent race in Polk County is white, which represent 85.27% of the total population. The average Polk County education level is higher than the state average and is higher than the national average.

Topics:Population GrowthPopulation DensityPopulation by RacesPopulation by First AncestryPopulation by GenderPopulation by AgeEducationSchool EnrollmentHousehold and FamilyMarital StatusPlace of Birth and CitizenshipLanguage

Population in 2010-2014: 445,136. #1

Population Growth Since 2000, #3

Polk County
18.83%
Iowa
5.19%
U.S.
11.61%

Population Density, #1

Polk County
752.51 per square mile
Iowa
54.70 per square mile
U.S.
82.73 per square mile

Population by Races

White:379,579 (85.27%, #96)
Black:27,429 (6.16%, #3)
Hispanic:34,835 (7.83%, #13)
Asian:17,234 (3.87%, #5)
Native (American Indian, Alaska Native, Hawaiian Native, etc.):1,358 (0.31%, #32)
One Race, Other:8,111 (1.82%, see rank)
Two or More Races:11,425 (2.57%, see rank)

Hispanic Population
Mexican:27,313 (78.41%, see rank)
Puerto Rican:1,083 (3.11%, see rank)
Cuban:435 (1.25%, see rank)
Central American:3,893 (11.18%, see rank)
South American:1,070 (3.07%, see rank)

Asian Population
Indian:2,666 (15.47%, see rank)
Chinese:1,807 (10.49%, see rank)
Filipino:656 (3.81%, see rank)
Japanese:198 (1.15%, see rank)
Korean:1,251 (7.26%, see rank)
Vietnamese:3,373 (19.57%, see rank)
Asian, Other:7,283 (42.26%, see rank)
 

*Based on 2010-2014 data. View historical race data.

Population by First Ancestry

357,088 (80.22%) out of the total population of 445,136 reported first ancestry.

 Polk County% of the Total PopulationIowaU.S.
Arab1,1610.26%, see rank0.27%0.56%
Czech3,8200.86%, see rank1.89%0.47%
Danish6,5771.48%, see rank1.86%0.42%
Dutch17,2213.87%, see rank4.35%1.40%
English40,4249.08%, see rank8.78%8.02%
French11,4242.57%, see rank2.60%3.34%
German125,23428.13%, see rank36.73%15.03%
Greek1,0100.23%, see rank0.22%0.41%
Hungarian5910.13%, see rank0.12%0.46%
Irish60,56413.61%, see rank14.07%10.80%
Italian14,7123.31%, see rank2.10%5.52%
Norwegian21,8614.91%, see rank5.34%1.42%
Polish5,9261.33%, see rank1.28%3.01%
Portuguese2650.06%, see rank0.06%0.44%
Russian2,2920.51%, see rank0.36%0.92%
Scotch-Irish3,8350.86%, see rank0.85%0.99%
Scottish7,5581.70%, see rank1.51%1.72%
Subsaharan African6,1721.39%, see rank0.56%0.95%
Swedish12,2852.76%, see rank2.92%1.27%
Swiss1,3540.30%, see rank0.47%0.30%
Ukrainian2720.06%, see rank0.09%0.31%
American22,3835.03%, see rank6.36%7.12%
Welsh3,0610.69%, see rank0.67%0.57%

*Based on 2010-2014 data. View historical first ancestry data.

Population by Gender

Male: 218,905 (49.18%, see rank)
Females: 226,231 (50.82%, see rank)

Polk County
Male: 49.18%
Female: 50.82%
Iowa
Male: 49.58%
Female: 50.42%
U.S.
Male: 49.19%
Female: 50.81%

*Based on 2010-2014 data. View historical gender data.

Population by Age

Median Age (see rank)
Polk County
34.90 years old
Iowa
38.00 years old
U.S.
37.40 years old

Median Age, Male (see rank)
Polk County
34.00 years old
Iowa
36.70 years old
U.S.
36.10 years old

Median Age, Female (see rank)
Polk County
35.80 years old
Iowa
39.40 years old
U.S.
38.80 years old

 Polk County% of the Total PopulationIowaU.S.
Under 5 years32,8337.38%, see rank6.39%6.36%
5 to 9 years32,2917.25%, see rank6.62%6.51%
10 to 14 years30,3826.83%, see rank6.58%6.59%
15 to 19 years28,4816.40%, see rank6.96%6.85%
20 to 24 years29,2546.57%, see rank7.21%7.13%
25 to 34 years70,29515.79%, see rank12.65%13.47%
35 to 44 years60,71413.64%, see rank11.80%12.96%
45 to 54 years60,59713.61%, see rank13.73%14.09%
55 to 64 years50,44311.33%, see rank12.80%12.29%
65 to 74 years27,7476.23%, see rank7.81%7.64%
75 to 84 15,2263.42%, see rank4.98%4.25%
85 years and over6,8731.54%, see rank2.48%1.85%

*Based on 2010-2014 data. View historical age data.

Education for the 25 Years and Over

 Polk CountyIowaU.S.
Total 25 Years and Over Population291,895, 100%2,038,942209,056,129
Less Than High School23,596, 8.08%, see rank8.73%13.67%
High School Graduate74,964, 25.68%, see rank32.51%27.95%
Some College or Associate Degree90,139, 30.88%, see rank32.40%29.09%
Bachelor Degree72,076, 24.69%, see rank17.99%18.27%
Master, Doctorate, or Professional Degree31,120, 10.66%, see rank8.36%11.01%
USA.com Education Index#14.03, see rank13.6013.54
# Higher USA.com Education Index means more educated population.

*Based on 2010-2014 data. View historical education level data.

School Enrollment

 Polk County IowaU.S.
Total PublicPrivatePublicPrivatePublicPrivate
Nursery School, Preschool, Kindergarten14,58474.70%25.30%78.45%21.55%71.30%28.70%
Elementary School (Grades 1-8)49,99290.25%, see rank9.75%, see rank89.39%10.61%89.86%10.14%
High School (Grades 9-12)23,03590.34%, see rank9.66%, see rank92.11%7.89%90.60%9.40%
College23,36560.78%, see rank39.22%, see rank74.24%25.76%78.37%21.63%
Graduate School6,18237.51%, see rank62.49%, see rank64.78%35.22%58.86%41.14%

*Based on 2010-2014 data. View historical school enrollment data.

Household and Family

 Polk CountyIowaU.S.
Total Households174,759, 100%1,232,228116,211,092
Average Household Size2.50, see rank2.422.63
1 Person Households48,496, 27.75%, see rank28.77%27.57%
2 or More Person Households126,263, 72.25%, see rank71.23%72.43%
Family Households (Families)113,841, 65.14%, see rank64.68%66.22%
Average Family Size3.16, see rank3.053.32
Married-Couple Family85,911, 49.16%, see rank51.37%48.42%
Nonfamily Households60,918, 34.86%, see rank35.32%33.78%

*Based on 2010-2014 data. View historical household and family data.

Marital Status of 15 Years and Over

 Polk County%IowaU.S.
15 Years and Over Total349,630see rank2,475,176252,974,135
Males, 15 Years and Over169,910100%, see rank1,217,529123,281,364
Never Married55,62032.73%, see rank31.87%35.77%
Married93,00754.74%, see rank55.49%52.04%
Widowed3,5942.12%, see rank2.60%2.57%
Divorced17,68910.41%, see rank10.05%9.62%
Females, 15 Years and Over179,720100%, see rank1,257,647129,692,771
Never Married48,99327.26%, see rank25.22%29.48%
Married94,16352.39%, see rank53.54%49.19%
Widowed13,8657.71%, see rank9.92%9.16%
Divorced22,69912.63%, see rank11.31%12.16%

*Based on 2010-2014 data. View historical marital status data.

Place of Birth and Citizenship

 Polk County%IowaU.S.
Native406,98191.43%, see rank95.33%86.93%
Born in the State of Residence306,45868.85%, see rank71.51%58.73%
Born in Different State97,61921.93%, see rank23.31%26.78%
Born in Puerto Rico, U.S. Island Areas,
or Born Abroad to American Parent(s)		2,9040.65%, see rank0.51%1.42%
Foreign Born38,1558.57%, see rank4.67%13.07%
Foreign Born with U.S. Citizenship15,4183.46%, see rank1.75%5.99%
Foreign Born without U.S. Citizenship22,7375.11%, see rank2.91%7.09%
Born In Europe6,3711.43%, see rank0.68%1.53%
Born In Asia12,9912.92%, see rank1.60%3.82%
Born In Africa4,9931.12%, see rank0.39%0.55%
Born In Oceania2600.06%, see rank0.04%0.07%
Born In Latin America12,8362.88%, see rank1.84%6.83%
Born In Northern America7040.16%, see rank0.12%0.26%

*Based on 2010-2014 data. View historical place of birth and citizenship data.

Language Spoken at Home

 Polk County%IowaU.S.
English152,88987.49%, see rank92.20%79.39%
Spanish9,9685.70%, see rank3.98%11.75%
Other Indo-European Languages4,9402.83%, see rank1.97%4.52%
Asian and Pacific Islander Languages4,7432.71%, see rank1.36%3.36%
Other2,2191.27%, see rank0.50%0.99%

*Based on 2010-2014 data. View historical language spoken at home data.


 
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