15421 ZIP Code — Chalk Hill, PA

Fayette County, Pennsylvania

ZIP code 15421 is located in Chalk Hill, Pennsylvania, within Fayette County. It covers approximately 0.27 square miles and serves a population of 96 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 724/412.

population

0.27

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

15421 ZIP code map

Cities in ZIP code 15421

Below are the cities the US Postal Service accepts for ZIP code 15421. Using any city not on this list may result in mail delivery delays.

City	Status
Chalk Hill	Acceptable

Demographics updated 05/2026

Population
Total population	96
Population density	356 / sq mi
State FIPS	42
County FIPS	051

Geography
Land area	0.27 sq mi
Water area	0.00 sq mi
Latitude	39.8442
Longitude	-79.6168
Timezone	Eastern (ET)
Area code	724/412

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	34.8%	50.2%	39.8%
$50k – $100k	0.0%	30.3%	30.8%
$100k – $200k	65.2%	17.0%	22.4%
Over $200k	0.0%	2.4%	7.1%

Demographics & statistics

Population

356

People per sq mi

62.5

Median age

Median household income

$128,107

Per capita income

$223,100

Median home value

Median monthly rent

100.0%

Home ownership

0.0%

Poverty rate

0.0%

Unemployment

146

Housing units

62.5%

Bachelor's or higher

Age distribution

Male Female

25–34

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	0	0.0%
18 and over	96	100.0%
65 and over	35	36.5%
Median age	62.5 years

Race & ethnicity

White 100%

Group	Count	%
White	96	100%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	34.8%	50.2%	39.8%
$50k – $100k	0.0%	30.3%	30.8%
$100k – $200k	65.2%	17.0%	22.4%
Over $200k	0.0%	2.4%	7.1%

$50k–$75k 14.8%

$75k–$100k 19.7%

$150k–$200k 24.6%

$200k+ 41.0%

Range	% of households
$50k–$75k	14.8%
$75k–$100k	19.7%
$150k–$200k	24.6%
$200k+	41.0%
Median income	$0

Housing

Home values

$150k–$200k 19.7%

$200k–$300k 65.6%

$500k–$1M 14.8%

Housing overview

Metric	Value
Median home value	$223,100
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	58.2%
Single-family detached	100.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	4.4
Avg household size (owned)	1.57

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	0.0%
1990–1999	0.0%
1980–1989	19.9%
1970–1979	10.3%
1960–1969	25.3%
1950–1959	20.5%
1940–1949	6.2%
1939 or earlier	17.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	54.8%
3 bedrooms	45.2%
4 bedrooms	0.0%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	55.7%
2 vehicles	44.3%
3 or more	0.0%

Heating fuel

Fuel type	%
Propane / LP gas	65.6%
Fuel oil	14.8%
Wood	19.7%

Households & families

Household type	Count	%
Married-couple family	15	24.6%
Cohabiting couple	25	41.0%
Male householder, no spouse	21	34.4%
Female householder, no spouse	0	0.0%
Households with children under 18	0	0.0%
Households with seniors (65+)	24	39.3%
Average household size	1.57

Marital status

Status	Male	Female
Never married	64.3%	0.0%
Married	19.6%	37.5%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	16.1%	62.5%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 28.1%

Some college, no degree 9.4%

Associate's degree 0.0%

Bachelor's degree 62.5%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	100.0%
Bachelor's or higher	62.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	0	0.0%
College / grad school	0	0.0%

Employment

Industry of employment

Professional & management 52.1%

Agriculture & mining 25.0%

Other services 22.9%

Occupation

Category	%
Management, business & arts	52.1%
Service	22.9%
Sales & office	0.0%
Natural resources & construction	25.0%
Production & transportation	0.0%

Employment type

Type	%
Private sector	100.0%
Government	0.0%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	47.9%
Carpool	52.1%
Public transit	0.0%
Walk	0.0%
Work from home	0.0%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 0.0%

Under 18 years 0.0%

18 and over 0.0%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	24.6%
Retirement income	80.3%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	36.9%
High blood pressure	38.9%
High cholesterol	37.8%
Diabetes	14.1%
Heart disease	9.5%
Stroke	4.1%
Asthma	10.3%
Arthritis	34.5%
Kidney disease	3.8%
Pulmonary disease	10.9%
Cancer	8.4%

Behavior / access	%
Smoking	23.1%
Binge drinking	16.6%
No physical activity	26.3%
Less than 7 hrs sleep	37.3%
Depression	22.5%
Fair or poor health	18.0%
Poor mental health	15.1%
Poor physical health	13.5%
No health insurance	9.5%
Visited doctor (checkup)	80.6%
Visited dentist	61.6%
Cholesterol screening	91.5%
Teeth loss	16.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	9	9.4%

Disability	%
Any disability	11.5%
Under 18	0.0%
18–64 years	0.0%
65 and over	31.4%

Health insurance coverage

Type	%
Private insurance	65.6%
Public insurance	36.5%
No insurance	25.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	96	100.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	96	100.0%
Born in same state	96	100.0%
Born in different state	35	36.5%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	11	11.5%

Technology access

Metric	% of households
Computer access	63.5%
Internet access	100.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 15421

What city is ZIP code 15421 in?

ZIP code 15421 is primarily assigned to Chalk Hill, Pennsylvania.

What county is ZIP code 15421 in?

ZIP code 15421 falls within Fayette County, Pennsylvania.

Does ZIP code 15421 have an older population?

37% of residents in ZIP code 15421 are 65 or older, above the national average of ~17%.

How educated is the population of ZIP code 15421?

63% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 15421 have a large veteran population?

9% of civilians in ZIP code 15421 are veterans, above the national average of ~7%.

What is the population of ZIP code 15421?

ZIP code 15421 has an estimated population of 96 residents, with a density of 358 people per square mile.

What timezone is ZIP code 15421 in?

ZIP code 15421 observes the EST timezone.