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COUNTY · 2000 CENSUS

Miami County

Ohio · 98,868 residents · 407 sq mi
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The short version

Miami County is home to 98,868 people in Ohio. 16% of adults hold a bachelor's degree or higher. Poverty is uncommon here, at 6.7% of residents. Owners hold 72% of the housing stock. Headcount has barely moved since 1990. Home values have risen by half since 1990, reaching $112,300.

At a glance
Average income
near the US median
US median: $42,589
Older
median age 37.7
US median: 35.2
Less educated
16% hold a bachelor's degree
US average: 24%
Less affordable
home values up 33%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

98,868
+6%since 1990
from 93,182 in 1990
1990 – 2025
37.7
+10%since 1990
from 34.3 in 1990
US average: 35.2
Land area
407 sq mi
Population, 19902024
91K97K102K107K112K19902000201020202024Miami County
2024110K
1990201020202024
Age distribution, 2000
Under 56.4%(6,325)
US avg: 6.8%
5 to 97.1%(7,042)
US avg: 7.3%
10 to 147.6%(7,553)
US avg: 7.3%
15 to 197.3%(7,223)
US avg: 7.2%
20 to 245.1%(5,036)
US avg: 6.7%
25 to 3412.5%(12,319)
US avg: 14.2%
35 to 4415.9%(15,738)
US avg: 16%
45 to 5414.6%(14,469)
US avg: 13.4%
55 to 6410.2%(10,067)
US avg: 8.6%
65 to 747.1%(7,011)
US avg: 6.5%
75 to 844.7%(4,599)
US avg: 4.4%
85 and over1.5%(1,486)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$44,109
+7%inflation adjusted, since 1990
from $31,425 in 1990
US average: $42,589
1990 – 2024
$21,669
+56%since 1990
from $13,896 in 1990
US average: $21,522
6.7%
−1.6 ptssince 1990
from 8.4% in 1990
US average: 12.4%
Section 03

Housing

$112,300
+33%inflation adjusted, since 1990
from $64,200 in 1990
US average: $120,530
1990 – 2024
$522
+4%inflation adjusted, since 1990
from $382 in 1990
US average: $602
72.3%
−0.4 ptssince 1990
from 72.7% in 1990
27.7% rent
Section 04

Race & ethnicity

1990
White, non-Hispanic97.1%(90,470)
Black1.9%(1,737)
Hispanic / Latino0.4%(371)
Asian0.7%(615)
2000
White, non-Hispanic95.3%(94,262)
Black1.9%(1,923)
Hispanic / Latino0.7%(721)
Asian0.8%(770)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican1.1%(1,215)
Puerto Rican0.5%(566)
Dominican0.2%(193)
Ecuadorian0.1%(105)
Spaniard0.1%(69)
Peruvian0%(38)
Cuban0%(36)
Colombian0%(30)
Chilean0%(10)
+ 2 more hispanic origin groups with data
Asian origin
Japanese0.7%(773)
Asian Indian0.5%(508)
Filipino0.3%(306)
Chinese0.2%(194)
Vietnamese0.1%(104)
Pakistani0%(45)
Thai0%(43)
Laotian0%(33)
Korean0%(22)
Pacific Islander origin
Ancestry
German27.9%(30,779)
English13.4%(14,732)
Irish12.1%(13,297)
American7.7%(8,455)
French3%(3,318)
Italian2.9%(3,246)
Scottish1.5%(1,678)
Polish1.4%(1,546)
Dutch1.3%(1,382)
Hungarian0.7%(766)
Welsh0.7%(726)
Scotch-Irish0.6%(632)
+ 32 more ancestry groups with data
Swiss0.5%(601)
British0.4%(399)
Russian0.4%(389)
Swedish0.3%(295)
Norwegian0.2%(261)
Lithuanian0.2%(243)
Croatian0.2%(225)
Ukrainian0.2%(194)
Portuguese0.1%(165)
Arab0.1%(110)
Lebanese0.1%(110)
Slovak0.1%(102)
Czech0.1%(89)
Turkish0.1%(89)
Canadian0.1%(73)
Greek0.1%(71)
Austrian0.1%(57)
Slovene0%(33)
Jamaican0%(32)
Danish0%(31)
Finnish0%(29)
Bulgarian0%(26)
Serbian0%(23)
Romanian0%(21)
Iranian0%(18)
Belgian0%(15)
Nigerian0%(11)
Section 05

Education

16.3%
+2.2 ptssince 1990
from 14.1% in 1990
US average: 24.4%
High school or higher
82.7%
+6.1 ptssince 1990
from 76.6% in 1990
US average: 80.3%
5.4%
+0.9 ptssince 1990
from 4.4% in 1990
US average: 8.8%
Section 06

Commute & transportation

13.0 min
−31%since 1990
from 18.9 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married22.6%(8,483)
Married65%(24,380)
Widowed2.4%(905)
Divorced9.9%(3,719)
Women 15+
Never married17.1%(6,926)
Married59.5%(24,070)
Widowed11%(4,435)
Divorced12.4%(5,018)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

4.7%
−6.0 ptssince 2013
from 10.7% in 2013
US average: 8.4%
60.6%
−1.7 ptssince 2020
from 62.3% in 2020
US average: 54.8%
Direct-purchase
12.8%
Unchangedsince 2020
from 12.8% in 2020
US average: 13.8%
20.9%
+0.5 ptssince 2020
from 20.4% in 2020
US average: 18.4%
17.2%
+0.6 ptssince 2020
from 16.6% in 2020
US average: 20.9%
VA health care
1.9%
−0.6 ptssince 2020
from 2.5% in 2020
US average: 2.2%
Any private
72.7%
−1.8 ptssince 2020
from 74.5% in 2020
US average: 67.1%
Any public
36.4%
+1.2 ptssince 2020
from 35.2% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)22.8%(1,346)
US avg: 26.4%
Gulf War (1990s)26.1%(1,541)
US avg: 24.3%
Vietnam era36.6%(2,164)
US avg: 33.1%
Korean War3.5%(209)
US avg: 4.5%
World War II0.3%(17)
US avg: 1%

Share of the 5,910 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked

How many people live in Miami County, Ohio?

Miami County, Ohio has about 98,868 residents according to the 2000 Census.

What is the median household income in Miami County, Ohio?

The typical household in Miami County, Ohio earns about $44,109 a year. Half of households make more than that, and half make less.

Is Miami County, Ohio expensive?

In Miami County, Ohio, the median home is worth about $112,300, and the typical rent is about $522 a month.

How educated are people in Miami County, Ohio?

About 16.3% of adults age 25 and over in Miami County, Ohio hold a bachelor's degree or higher.

What is the poverty rate in Miami County, Ohio?

About 6.7% of people in Miami County, Ohio live below the federal poverty line.

Has Miami County, Ohio grown since 1990?

Yes, Miami County, Ohio has grown since 1990. The population has added about 5,686 residents, a change of about 6 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →