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CITY · 2000 CENSUS

Olney

Maryland · 31,438 residents · 16.2 sq mi
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The short version

Olney is home to 31,438 people in Maryland. This is an unusually credentialed place: 56% of adults have a four-year degree. That is roughly 79% ahead of the Maryland median. Households take in $94,818 a year at the median, 123% more than the country as a whole. Owners hold 91% of the housing stock. The typical home is worth $242,400.

At a glance
Wealthier
above the US median
US median: $42,589
Mid-age
median age 36.7
US median: 35.2
More educated
56% hold a bachelor's degree
US average: 24%
More affordable
home values down 18%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
31,438
+37%since 1990
from 23,019 in 1990
1990 – 2024
Median age
36.7
+14%since 1990
from 32.3 in 1990
US average: 35.2
Land area
16.2 sq mi
Population, 1990 – 2024
22K26K30K33K37K19902000201020202024Olney
202436K
1990201020202024
Age distribution, 2000
Under 57.5%(2,363)
US avg: 6.8%
5 to 98.9%(2,797)
US avg: 7.3%
10 to 149.7%(3,037)
US avg: 7.3%
15 to 197.1%(2,245)
US avg: 7.2%
20 to 243.6%(1,142)
US avg: 6.7%
25 to 3410.2%(3,221)
US avg: 14.2%
35 to 4419.7%(6,180)
US avg: 16%
45 to 5417.6%(5,520)
US avg: 13.4%
55 to 649.3%(2,928)
US avg: 8.6%
65 to 743.9%(1,220)
US avg: 6.5%
75 to 841.8%(562)
US avg: 4.4%
85 and over0.7%(223)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$94,818
+7%inflation adjusted, since 1990
from $67,218 in 1990
US average: $42,589
1990 – 2024
Per capita income
$35,267
+50%since 1990
from $23,501 in 1990
US average: $21,522
Poverty rate
2.6%
+1.6 ptssince 1990
from 1.1% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$242,400
−18%inflation adjusted, since 1990
from $225,000 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$1,113
−8%inflation adjusted, since 1990
from $921 in 1990
US average: $602
Owner-occupied
91.0%
−0.4 ptssince 1990
from 91.4% in 1990
9.0% rent
Section 04

Race & ethnicity

1990
White, non-Hispanic87.6%(20,169)
Black6.5%(1,488)
Hispanic / Latino3.5%(795)
Asian5.1%(1,176)
2000
White, non-Hispanic76.2%(23,949)
Black8.7%(2,734)
Hispanic / Latino5%(1,576)
Asian8%(2,520)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

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

Hispanic origin
South American4.1%(1,468)
Salvadoran2%(712)
Colombian1.3%(461)
Spaniard1.2%(423)
Peruvian1%(343)
Puerto Rican0.9%(336)
Mexican0.9%(308)
Argentine0.8%(284)
Cuban0.6%(218)
Guatemalan0.5%(175)
Bolivian0.3%(110)
+ 10 more hispanic origin groups with data
Chilean0.3%(110)
Dominican0.2%(86)
Ecuadorian0.2%(76)
Costa Rican0.2%(72)
Nicaraguan0.1%(52)
Panamanian0.1%(29)
Honduran0.1%(22)
Uruguayan0.1%(20)
Asian origin
Korean2.8%(1,014)
Chinese2.6%(937)
Asian Indian2.5%(909)
Vietnamese1%(348)
Filipino0.8%(283)
Sri Lankan0.4%(147)
Burmese0.3%(119)
Bangladeshi0.2%(86)
Thai0.2%(54)
Nepalese0.1%(39)
Cambodian0.1%(23)
Japanese0%(13)
+ 1 more asian origin group with data
Ancestry
Irish11%(3,942)
German10.9%(3,907)
English9.8%(3,509)
Italian8%(2,877)
American4.6%(1,632)
Polish4%(1,426)
Ethiopian3.7%(1,313)
Russian2.3%(816)
Scottish2.1%(768)
Greek1.6%(583)
Arab1.5%(535)
+ 41 more ancestry groups with data
French1.3%(480)
Ukrainian0.9%(328)
Kenyan0.9%(305)
Swedish0.8%(287)
Lithuanian0.8%(276)
West Indian0.7%(267)
Egyptian0.6%(221)
Brazilian0.6%(215)
Czech0.6%(203)
Portuguese0.6%(203)
Hungarian0.5%(193)
Iranian0.5%(182)
Welsh0.5%(181)
Finnish0.5%(172)
Dutch0.4%(149)
Jamaican0.4%(142)
Lebanese0.4%(139)
Slovak0.3%(123)
Norwegian0.3%(122)
British0.3%(102)
Austrian0.2%(67)
Serbian0.2%(67)
Swiss0.2%(66)
Turkish0.2%(63)
Palestinian0.1%(46)
Nigerian0.1%(46)
Danish0.1%(45)
Jordanian0.1%(32)
Latvian0.1%(32)
Canadian0.1%(28)
Moroccan0.1%(27)
Armenian0.1%(23)
Croatian0.1%(19)
Romanian0%(17)
Haitian0%(13)
Guyanese0%(12)
Belgian0%(10)
Ghanaian0%(10)
Section 05

Education

Bachelor's degree or higher
56.2%
+7.0 ptssince 1990
from 49.2% in 1990
US average: 24.4%
High school or higher
95.7%
+0.5 ptssince 1990
from 95.2% in 1990
US average: 80.3%
Graduate degree
23.9%
+4.8 ptssince 1990
from 19.2% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
27.1 min
−11%since 1990
from 30.3 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 married23.3%(2,594)
Married71.2%(7,910)
Widowed1.9%(210)
Divorced3.6%(400)
Women 15+
Never married20.3%(2,472)
Married66%(8,034)
Widowed4.9%(595)
Divorced8.7%(1,063)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured
2.2%
−3.4 ptssince 2013
from 5.6% in 2013
US average: 8.4%
Employer-based
76.4%
+2.4 ptssince 2020
from 74.0% in 2020
US average: 54.8%
Direct-purchase
13.7%
−1.1 ptssince 2020
from 14.8% in 2020
US average: 13.8%
Medicare
16.0%
+0.4 ptssince 2020
from 15.6% in 2020
US average: 18.4%
Medicaid
10.2%
+2.1 ptssince 2020
from 8.1% in 2020
US average: 20.9%
VA health care
0.9%
+0.1 ptssince 2020
from 0.8% in 2020
US average: 2.2%
Any private
87.2%
+0.3 ptssince 2020
from 86.9% in 2020
US average: 67.1%
Any public
25.2%
+2.4 ptssince 2020
from 22.8% 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)24.3%(328)
US avg: 26.4%
Gulf War (1990s)33.3%(450)
US avg: 24.3%
Vietnam era45.5%(615)
US avg: 33.1%
Korean War1.3%(18)
US avg: 4.5%
World War II1.8%(24)
US avg: 1%

Share of the 1,352 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 Olney, Maryland?

Olney, Maryland has about 31,438 residents according to the 2000 Census.

What is the median household income in Olney, Maryland?

The typical household in Olney, Maryland earns about $94,818 a year. Half of households make more than that, and half make less.

Is Olney, Maryland expensive?

In Olney, Maryland, the median home is worth about $242,400, and the typical rent is about $1,113 a month.

How educated are people in Olney, Maryland?

About 56.2% of adults age 25 and over in Olney, Maryland hold a bachelor's degree or higher.

What is the poverty rate in Olney, Maryland?

About 2.6% of people in Olney, Maryland live below the federal poverty line.

Has Olney, Maryland grown since 1990?

Yes, Olney, Maryland has grown since 1990. The population has added about 8,419 residents, a change of about 37 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 →