Zip code 15666: Mount Pleasant, Pennsylvania

Q: What city is zip code 15666?

15666 is assigned to Mount Pleasant, Pennsylvania. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 15666 in?

15666 is mostly in Westmoreland County, but it extends into 1 other county.

Q: What is the population of 15666?

About 15,980 people live in 15666, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 15666?

The median household income in 15666 is $68,102.

Q: What zip codes are near 15666?

The closest zip codes to 15666 are 15674, 15621, 15688, 15689, 15612.

Residential delivery areaWestmoreland CountyEastern Time

Population

15,980

Median household income

$68K

U.S. $81K

Median home value

$163K

U.S. $333K

Median rent

$799/mo

U.S. $1,413

Median age

50.2

U.S. 38.9

Land area

53 sq mi

299 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 15666

15666 is a small-town zip code in Mount Pleasant, Pennsylvania (Westmoreland County), covering 53 sq mi of land. About 15,980 people live here, or 299 per square mile. The median resident is 50.2 years old, compared with 38.9 nationally.

The median household earns $68,102 a year, 16% below the national median of $80,734. 10.4% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $163,100, or 2.4 years of median household income (U.S.: 4.1 years), which makes homes relatively affordable for local earners. 77% of occupied homes are lived in by their owners, and renters pay a median of $799 a month.

23% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 26.1 minutes each way, and 9% of workers work from home. The most common jobs among working residents are in healthcare; management; and construction and repair.

How 15666 compares

Sorted from highest to lowest national percentile

Median age50.2
95th
U.S. 38.9 · PA 40.9362nd of 1,707 in PA
Residents 65 and older23.7%
89th
U.S. 17.2% · PA 19.5%540th of 1,707 in PA
Veterans7.9%
76th
U.S. 6.2% · PA 6.1%598th of 1,707 in PA
Homeownership rate77.1%
72nd
U.S. 65.2% · PA 69.3%1,001st of 1,698 in PA
Healthcare workers10.9%
70th
U.S. 9.7% · PA 11.5%809th of 1,704 in PA
Housing vacancy7%
53rd
U.S. 10.1% · PA 9.2%1,039th of 1,699 in PA
Average commute26.1 min
50th
U.S. 26.4 min · PA 26.3 min895th of 1,596 in PA
Median earnings per worker$47,727
48th
U.S. $49,666 · PA $50,599755th of 1,693 in PA
Poverty rate10.4%
47th
U.S. 12.5% · PA 11.7%760th of 1,699 in PA
Per capita income$37,504
42nd
U.S. $44,673 · PA $44,355793rd of 1,707 in PA
Income inequality (Gini)0.420
37th
U.S. 0.483 · PA 0.474727th of 1,697 in PA
Median household income$68,102
33rd
U.S. $80,734 · PA $77,971938th of 1,617 in PA
Bachelor's degree or higher22.8%
28th
U.S. 35.7% · PA 35.2%808th of 1,706 in PA
Population density299/sq mi
26th
U.S. 95/sq mi · PA 291/sq mi831st of 1,707 in PA
Work from home8.7%
26th
U.S. 15.1% · PA 15.6%1,017th of 1,704 in PA
Uninsured rate4.3%
25th
U.S. 8.4% · PA 5.6%897th of 1,705 in PA
Population15,980
24th
U.S. 334,922,499 · PA 13,018,639267th of 1,707 in PA
Unemployment rate3.3%
21st
U.S. 5.2% · PA 5.3%1,032nd of 1,704 in PA
Tech workers1.4%
20th
U.S. 3.8% · PA 3.6%900th of 1,704 in PA
Government workers10.1%
19th
U.S. 14.5% · PA 11.5%1,032nd of 1,704 in PA
Self-employed workers6.9%
18th
U.S. 10% · PA 8.2%1,067th of 1,704 in PA
Residents under 1817.2%
15th
U.S. 22% · PA 20.4%1,177th of 1,707 in PA
Median home value$163,100
13th
U.S. $332,700 · PA $254,5001,056th of 1,628 in PA
Broadband access82.7%
8th
WeaknessU.S. 91% · PA 89.7%1,299th of 1,698 in PA
Median gross rent$799
7th
U.S. $1,413 · PA $1,2091,075th of 1,366 in PA
Rent-burdened renters30.6%
5th
StrengthU.S. 51.1% · PA 48.2%1,157th of 1,596 in PA
Foreign-born residents0.5%
3rd
U.S. 14.1% · PA 7.7%1,177th of 1,707 in PA
Diversity index6.2
2nd
U.S. 61.4 · PA 44.61,357th of 1,707 in PA

Measure	15666	Westmoreland	PA	U.S.	National percentile	Rank in PA
Median age	50.2	47.2	40.9	38.9	95th	362nd of 1,707
Residents 65 and older	23.7%	24.3%	19.5%	17.2%	89th	540th of 1,707
Veterans	7.9%	7.3%	6.1%	6.2%	76th	598th of 1,707
Homeownership rate	77.1%	78.4%	69.3%	65.2%	72nd	1,001st of 1,698
Healthcare workers	10.9%	11.8%	11.5%	9.7%	70th	809th of 1,704
Housing vacancy	7%	8.2%	9.2%	10.1%	53rd	1,039th of 1,699
Average commute	26.1 min	26.7 min	26.3 min	26.4 min	50th	895th of 1,596
Median earnings per worker	$47,727	$50,593	$50,599	$49,666	48th	755th of 1,693
Poverty rate	10.4%	10.3%	11.7%	12.5%	47th	760th of 1,699
Per capita income	$37,504	$43,509	$44,355	$44,673	42nd	793rd of 1,707
Income inequality (Gini)	0.420	0.454	0.474	0.483	37th	727th of 1,697
Median household income	$68,102	$74,109	$77,971	$80,734	33rd	938th of 1,617
Bachelor's degree or higher	22.8%	32.8%	35.2%	35.7%	28th	808th of 1,706
Population density	299/sq mi	343/sq mi	291/sq mi	95/sq mi	26th	831st of 1,707
Work from home	8.7%	13.3%	15.6%	15.1%	26th	1,017th of 1,704
Uninsured rate	4.3%	3%	5.6%	8.4%	25th	897th of 1,705
Population	15,980	352,500	13,018,639	334,922,499	24th	267th of 1,707
Unemployment rate	3.3%	4.8%	5.3%	5.2%	21st	1,032nd of 1,704
Tech workers	1.4%	2.8%	3.6%	3.8%	20th	900th of 1,704
Government workers	10.1%	10%	11.5%	14.5%	19th	1,032nd of 1,704
Self-employed workers	6.9%	8%	8.2%	10%	18th	1,067th of 1,704
Residents under 18	17.2%	18.2%	20.4%	22%	15th	1,177th of 1,707
Median home value	$163,100	$203,500	$254,500	$332,700	13th	1,056th of 1,628
Broadband accessWeakness	82.7%	88.5%	89.7%	91%	8th	1,299th of 1,698
Median gross rent	$799	$879	$1,209	$1,413	7th	1,075th of 1,366
Rent-burdened rentersStrength	30.6%	39.7%	48.2%	51.1%	5th	1,157th of 1,596
Foreign-born residents	0.5%	1.9%	7.7%	14.1%	3rd	1,177th of 1,707
Diversity index	6.2	16.3	44.6	61.4	2nd	1,357th of 1,707

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

14%

5–17

18–24

10%

25–34

12%

35–44

13%

45–54

18%

55–64

15%

65–74

75+

Median age

50.2

Under 18

17.2%

65 and over

23.7%

Race and ethnicity

White97%
Black0.8%
Hispanic0.4%
Asian0.0%
Native American0%
Pacific Islander0%
Other0%
Multiracial2%

Diversity index

6.2

U.S. 61.4

Foreign-born

0.5%

U.S. 14.1%

Born in state

89.7%

Language spoken at home (households)

English only

98%

Spanish

Other Indo-European

0.8%

Asian / Pacific

0.0%

Other

Households

Households: 7,308
Average household size: 2.2
Family households: 61.5%
Married couples: 45.5%
Living alone: 30.4%
Veterans (of adults): 7.9%
Male / female: 48% / 52%

Income and poverty

Household income distribution

<$25k

16%

$25–50k

21%

$50–75k

17%

$75–100k

16%

$100–150k

17%

$150–200k

$200k+

Median household income

15666

$68,102

Westmoreland Co.

$74,109

Pennsylvania

$77,971

United States

$80,734

Per capita income

$37,504

U.S. $44,673

Poverty rate

10.4%

U.S. 12.5%

Households earning $150K+

12.2%

U.S. 23%

Income inequality (Gini)

0.420

U.S. 0.483

Housing

Median home value

15666

$163,100

Westmoreland Co.

$203,500

Pennsylvania

$254,500

United States

$332,700

Median gross rent

15666

$799

Westmoreland Co.

$879

Pennsylvania

$1,209

United States

$1,413

Types of housing

Single-family

77%

2–4 units

5–19 units

20+ units

Mobile home

11%

Boat, RV, van

Housing units: 7,859
Owner-occupied: 77.1%
Vacant: 7%
Median year built: 1962
Median rooms: 5.9
Renters paying 30%+ of income: 30.6%
Renters paying 50%+ of income: 13%
Home value to income: 2.4× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

82%

Carpooled

Transit

0.1%

Walked

Bicycle

Worked from home

Other

0.5%

Commute time (one way)

<10 min

12%

10–19

32%

20–29

19%

30–44

21%

45–59

60+

10%

Average commute

26.1 min

U.S. 26.4 min

Unemployment

3.3%

U.S. 5.2%

In labor force

59.9%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Healthcare

11%

Management

11%

Construction and repair

10%

Sales

Office and admin

Transportation and moving

Production

Cleaning and personal care

Education

Food service

Engineering and science

Business and finance

Legal and social services

Arts, media and sports

Police and fire

Computer and math

Farming, fishing and forestry

0.1%

Industries

Health care and social assistance

18%

Manufacturing

13%

Retail

10%

Transportation, warehousing and utilities

Education

Restaurants and hotels

Other services

Construction

Professional and technical services

Wholesale

Admin, support and management

Public administration

Finance, insurance and real estate

Agriculture and mining

0.9%

Information

0.8%

Arts and recreation

0.7%

Median earnings per worker

$47,727

U.S. $49,666

Self-employed

6.9%

U.S. 10%

Government workers

10.1%

U.S. 14.5%

Nonprofit workers

10.7%

U.S. 8.8%

Median earnings by type of work

Type of work	15666	U.S.
Management, business, science and arts	$69,319	$74,888
Service	$25,898	$26,804
Sales and office	$37,891	$40,476
Construction and maintenance	$59,694	$49,199
Production and transportation	$41,087	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

43%

Some college

15%

Associate's

13%

Bachelor's

15%

Graduate

High school graduate or higher: 94.2%
Bachelor's degree or higher: 22.8%
Graduate or professional degree: 7.6%
Households with broadband: 82.7%
Cable, fiber or DSL: 71.8%
No internet access: 14.2%
Without health insurance: 4.3%
Limited-English households: 0.1%

Geography

City (USPS): Mount Pleasant
State: Pennsylvania
County: Westmoreland County
Center point: 40.1610° N, 79.5098° W
Land area: 53 sq mi
Water area: 0.2 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

15666 spans 2 counties

Westmoreland County76% of land
Fayette County24% of land

Cities and towns within this zip

Mammoth (unincorporated)4% of zip
Norvelt (unincorporated)3% of zip
Calumet (unincorporated)2% of zip
Mount Pleasant2% of zip
Bear Rocks (unincorporated)1% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 15666

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
15674	Norvelt, PA	3.2 mi	158	$86,827	$187,500
15621	Calumet, PA · PO box	3.7 mi	—	—	—
15688	Tarrs, PA	4.1 mi	612	$80,938	$89,500
15689	United, PA	4.5 mi	92	—	—
15612	Alverton, PA	5 mi	443	$59,018	—
15639	Hunker, PA	5.3 mi	2,160	$79,843	$231,100
15610	Acme, PA	5.4 mi	3,988	$72,938	$197,100
15616	Armbrust, PA	5.6 mi	363	$115,648	$318,100
15490	White, PA	6 mi	659	$49,408	$301,400
15631	Everson, PA	6.3 mi	672	$52,727	$91,400
15676	Pleasant Unity, PA	6.3 mi	544	—	$270,000
15683	Scottdale, PA	6.4 mi	7,643	$51,913	$150,400

Zip codes like 15666 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 15666

What city is zip code 15666?

15666 is assigned to Mount Pleasant, Pennsylvania. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 15666 in?

15666 is mostly in Westmoreland County, but it extends into 1 other county.

What is the population of 15666?

About 15,980 people live in 15666, according to the Census Bureau's American Community Survey.

What time zone is 15666 in?

15666 is in Eastern Time.

What is the median household income in 15666?

The median household income in 15666 is $68,102.

What zip codes are near 15666?

The closest zip codes to 15666 are 15674, 15621, 15688, 15689, 15612.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 15666, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.