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COUNTY · 2010 ACS

Marion County

Iowa · 33,309 residents · 554.49 sq mi
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The short version

Marion County has roughly average household income, with a median household income of $53,370. Population has held roughly steady since 2000. Median home value has risen by half since 2000, reaching $137,300.

At a glance
Average income
near the US median
US median: $52,703
Mid-age
median age 38.6
US median: 37.2
Average education
24% hold a bachelor's degree
US average: 28%
Stable housing
home values roughly flat, inflation adjusted
US median home: $225,659
Section 01

Population & growth

Total population
33,309
+4%since 2000
from 32,052 in 2000
1990 – 2025
Population density
60 / sq mi
+4%since 2000
from 58 / sq mi in 2000
US average: 261
Median age
38.6
+4%since 2000
from 37.2 in 2000
US average: 37.2
Population, 1990 – 2024
30K31K32K33K34K1990201020202024Marion County
202434K
1990201020202024
Section 02

Income & economy

Median household income
$53,370
−1%inflation adjusted, since 2000
from $42,401 in 2000
US average: $52,703
1990 – 2024
Per capita income
$24,613
+32%since 2000
from $18,717 in 2000
US average: $27,286
Households earning $100K+
30.6%
+1.2 ptssince 2009
from 29.3% in 2009
US average: 33.3%
Poverty rate
8.0%
+0.3 ptssince 2000
from 7.6% in 2000
US average: 13.8%
Income inequality (Gini)
0.397
US average: 0.461
Workforce by industry, 2010
Retail trade23.4%
US avg: 10.9%
Information9.6%
US avg: 11.5%
Wholesale trade6.2%
US avg: 7.2%
Other services5.8%
US avg: 7%
Public administration4.6%
US avg: 4.9%
Finance & insurance3.6%
US avg: 5.1%
Agriculture, forestry, fishing3.4%
US avg: 1.9%
Construction3.1%
US avg: 1.4%
Professional, scientific, technical2.9%
US avg: 4.2%
Transportation & warehousing2.4%
US avg: 3.1%
Arts, entertainment, food1.7%
US avg: 2.4%
Education & health services0.6%
US avg: 0.9%
Manufacturing0.3%
US avg: 0.5%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$137,300
+24%inflation adjusted, since 2000
from $87,100 in 2000
US average: $225,659
1990 – 2024
Median gross rent
$625
+5%inflation adjusted, since 2000
from $472 in 2000
US average: $853
Owner-occupied
49.6%
−25.9 ptssince 2000
from 75.6% in 2000
24.8% rent
Vacancy rate
9.7%
+1.1 ptssince 2009
from 8.6% in 2009
US average: 12.1%
Owner cost-burdened
16.1%
+0.3 ptssince 2009
from 15.7% in 2009
US average: 30.9%
Renter cost-burdened
36.8%
−4.3 ptssince 2009
from 41.1% in 2009
US average: 46.8%
Afford Score
2.6
+25%since 2000
from 2.1 in 2000
1990 – 2024
RELATED:See current rent listings in Marion County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic96.9%(31,074)
Black0.4%(129)
Hispanic / Latino0.8%(257)
Asian1%(330)
Other0%
Diversity Score5.5%(1,777)
2010
White, non-Hispanic95.6%(31,834)
Black0.6%(211)
Hispanic / Latino1.6%(531)
Asian1.1%(379)
Other1.1%(350)
Diversity Score10.7%(3,575)
Diversity Score
11
+94%since 2000
from 6 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
24.0%
+5.1 ptssince 2000
from 18.9% in 2000
US average: 27.9%
High school or higher
91.4%
+7.4 ptssince 2000
from 84.0% in 2000
US average: 84.9%
Graduate degree
7.3%
+1.8 ptssince 2000
from 5.4% in 2000
US average: 10.2%
Section 06

Commute & transportation

Average commute
19.9 min
+28%since 2000
from 15.6 min in 2000
US average: 25.2
Drive alone to work
77.3%
+1.3 ptssince 2009
from 76.0% in 2009
US average: 76.2%
Carpooled to work
9.9%
−0.6 ptssince 2009
from 10.5% in 2009
US average: 10.4%
Public transit
0.6%
Unchangedsince 2009
from 0.6% in 2009
US average: 4.7%
Worked from home
6.9%
−0.1 ptssince 2009
from 7.0% in 2009
US average: 4.1%
Walked to work
3.9%
−0.7 ptssince 2009
from 4.6% in 2009
US average: 2.8%
Biked to work
0.4%
Unchangedsince 2009
from 0.4% in 2009
US average: 0.5%
No vehicle available
5.0%
−0.5 ptssince 2009
from 5.5% in 2009
US average: 8.7%
Section 07

Work & employment

Self-employed
13.6%
+0.5 ptssince 2009
from 13.1% in 2009
US average: 12.9%
Management & professional
31.3%
−32.8 ptssince 2009
from 64.2% in 2009
US average: 35.2%
Section 08

People & community

Male
49.5%
−0.1 ptssince 2009
from 49.6% in 2009
Female
50.5%
+0.1 ptssince 2009
from 50.4% in 2009
Foreign born
1.6%
−0.3 ptssince 2009
from 1.9% in 2009
US average: 12.8%
Veterans
10.7%
−38.3 ptssince 2009
from 48.9% in 2009
US average: 9.9%
Drill deeper

Places similar to Marion County

Effingham County
Pop 34,519
Lumpkin County
Pop 36,178
Pickens County
Pop 37,167
Gilmer County
Pop 33,894
Places similar to Marion County
Head to head

Compare Marion County to nearby counties

MARION COUNTY VS
Mahaska County
Income$70,940+33%
Home value$157,800+15%
Population21,880−36%
SEE FULL COMPARISON →
MARION COUNTY VS
Monroe County
Income$70,996+33%
Home value$156,300+14%
Population7,406−78%
SEE FULL COMPARISON →
MARION COUNTY VS
Lucas County
Income$61,793+16%
Home value$120,200−12%
Population8,847−74%
SEE FULL COMPARISON →
MARION COUNTY VS
Jasper County
Income$71,311+34%
Home value$186,300+36%
Population38,153+12%
SEE FULL COMPARISON →
Frequently asked

How many people live in Marion County, Iowa?

Marion County, Iowa has about 33,309 residents according to the 2010 American Community Survey.

What is the median household income in Marion County, Iowa?

The typical household in Marion County, Iowa earns about $53,370 a year. Half of households make more than that, and half make less.

Is Marion County, Iowa expensive?

In Marion County, Iowa, the median home is worth about $137,300, and the typical rent is about $625 a month.

How educated are people in Marion County, Iowa?

About 24.0% of adults age 25 and over in Marion County, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Marion County, Iowa?

About 8.0% of people in Marion County, Iowa live below the federal poverty line.

Has Marion County, Iowa grown since 1990?

Yes, Marion County, Iowa has grown since 1990. The population has added about 3,308 residents, a change of about 11 percent over that period.

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Explore from here

10 census tracts
Census Tract 301.01Census Tract 304.01Census Tract 302.01Census Tract 304.02Census Tract 301.02Census Tract 302.02Census Tract 303Census Tract 306Census Tract 307Census Tract 305
12 ZIP codes
ZIP 50219ZIP 50138ZIP 50225ZIP 50044ZIP 50062ZIP 50214ZIP 50163ZIP 50256ZIP 50119ZIP 50057ZIP 50116ZIP 50252
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →