Zip code 18101: Allentown, Pennsylvania

Q: What city is zip code 18101?

18101 is assigned to Allentown, Pennsylvania. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 18101 in?

18101 is in Lehigh County, Pennsylvania.

Q: What is the population of 18101?

About 6,120 people live in 18101, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 18101?

The median household income in 18101 is $44,773.

Q: What zip codes are near 18101?

The closest zip codes to 18101 are 18102, 18105, 18103, 18109, 18032.

Residential delivery areaLehigh CountyEastern Time

Population

6,120

Median household income

$45K

U.S. $81K

Median home value

$171K

U.S. $333K

Median rent

$1,430/mo

U.S. $1,413

Median age

29.1

U.S. 38.9

Land area

0.3 sq mi

19,935 people/sq mi

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

About 18101

18101 is a dense urban zip code in Allentown, Pennsylvania (Lehigh County), covering 0.3 sq mi of land. About 6,120 people live here, or 19,935 per square mile. The median resident is 29.1 years old, compared with 38.9 nationally.

The median household earns $44,773 a year, 45% below the national median of $80,734. 22.8% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $171,300, or 3.8 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 8% of occupied homes are lived in by their owners, and renters pay a median of $1,430 a month.

23% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 28.8 minutes each way, and 13% of workers work from home. The most common jobs among working residents are in transportation and moving goods; healthcare; and office and administrative support. 56% of households speak a language other than English at home, most often Spanish.

How 18101 compares

Sorted from highest to lowest national percentile

Unemployment rate14.7%
99th
WeaknessU.S. 5.2% · PA 5.3%64th of 1,704 in PA
Population density19,935/sq mi
97th
U.S. 95/sq mi · PA 291/sq mi15th of 1,707 in PA
Poverty rate22.8%
89th
WeaknessU.S. 12.5% · PA 11.7%150th of 1,699 in PA
Healthcare workers13%
88th
U.S. 9.7% · PA 11.5%482nd of 1,704 in PA
Rent-burdened renters60.7%
85th
WeaknessU.S. 51.1% · PA 48.2%222nd of 1,596 in PA
Uninsured rate12.4%
81st
WeaknessU.S. 8.4% · PA 5.6%184th of 1,705 in PA
Diversity index63.5
80th
U.S. 61.4 · PA 44.641st of 1,707 in PA
Foreign-born residents17.3%
69th
U.S. 14.1% · PA 7.7%52nd of 1,707 in PA
Average commute28.8 min
67th
U.S. 26.4 min · PA 26.3 min549th of 1,596 in PA
Housing vacancy7.5%
57th
U.S. 10.1% · PA 9.2%994th of 1,699 in PA
Income inequality (Gini)0.443
57th
U.S. 0.483 · PA 0.474459th of 1,697 in PA
Median gross rent$1,430
52nd
U.S. $1,413 · PA $1,209192nd of 1,366 in PA
Work from home12.5%
49th
U.S. 15.1% · PA 15.6%616th of 1,704 in PA
Tech workers2.2%
37th
U.S. 3.8% · PA 3.6%653rd of 1,704 in PA
Bachelor's degree or higher23.2%
29th
U.S. 35.7% · PA 35.2%791st of 1,706 in PA
Veterans3.7%
23rd
U.S. 6.2% · PA 6.1%1,442nd of 1,707 in PA
Broadband access87.7%
22nd
U.S. 91% · PA 89.7%892nd of 1,698 in PA
Per capita income$28,551
15th
WeaknessU.S. $44,673 · PA $44,3551,452nd of 1,707 in PA
Median home value$171,300
15th
U.S. $332,700 · PA $254,500997th of 1,628 in PA
Median earnings per worker$37,337
15th
WeaknessU.S. $49,666 · PA $50,5991,462nd of 1,693 in PA
Residents under 1817%
14th
U.S. 22% · PA 20.4%1,191st of 1,707 in PA
Population6,120
10th
U.S. 334,922,499 · PA 13,018,639572nd of 1,707 in PA
Median household income$44,773
5th
WeaknessU.S. $80,734 · PA $77,9711,538th of 1,617 in PA
Median age29.1
3rd
U.S. 38.9 · PA 40.91,639th of 1,707 in PA
Government workers6.6%
3rd
U.S. 14.5% · PA 11.5%1,427th of 1,704 in PA
Homeownership rate8.3%
1st
WeaknessU.S. 65.2% · PA 69.3%1,688th of 1,698 in PA
Residents 65 and older5.4%
1st
U.S. 17.2% · PA 19.5%1,660th of 1,707 in PA
Self-employed workers1.4%
1st
U.S. 10% · PA 8.2%1,552nd of 1,704 in PA

Measure	18101	Lehigh	PA	U.S.	National percentile	Rank in PA
Unemployment rateWeakness	14.7%	5.9%	5.3%	5.2%	99th	64th of 1,704
Population density	19,935/sq mi	1,097/sq mi	291/sq mi	95/sq mi	97th	15th of 1,707
Poverty rateWeakness	22.8%	11.6%	11.7%	12.5%	89th	150th of 1,699
Healthcare workers	13%	11.8%	11.5%	9.7%	88th	482nd of 1,704
Rent-burdened rentersWeakness	60.7%	54.9%	48.2%	51.1%	85th	222nd of 1,596
Uninsured rateWeakness	12.4%	6.4%	5.6%	8.4%	81st	184th of 1,705
Diversity index	63.5	56.7	44.6	61.4	80th	41st of 1,707
Foreign-born residents	17.3%	14.4%	7.7%	14.1%	69th	52nd of 1,707
Average commute	28.8 min	24.9 min	26.3 min	26.4 min	67th	549th of 1,596
Housing vacancy	7.5%	4.5%	9.2%	10.1%	57th	994th of 1,699
Income inequality (Gini)	0.443	0.465	0.474	0.483	57th	459th of 1,697
Median gross rent	$1,430	$1,383	$1,209	$1,413	52nd	192nd of 1,366
Work from home	12.5%	14%	15.6%	15.1%	49th	616th of 1,704
Tech workers	2.2%	2.7%	3.6%	3.8%	37th	653rd of 1,704
Bachelor's degree or higher	23.2%	34.2%	35.2%	35.7%	29th	791st of 1,706
Veterans	3.7%	5.6%	6.1%	6.2%	23rd	1,442nd of 1,707
Broadband access	87.7%	90%	89.7%	91%	22nd	892nd of 1,698
Per capita incomeWeakness	$28,551	$43,088	$44,355	$44,673	15th	1,452nd of 1,707
Median home value	$171,300	$300,400	$254,500	$332,700	15th	997th of 1,628
Median earnings per workerWeakness	$37,337	$47,987	$50,599	$49,666	15th	1,462nd of 1,693
Residents under 18	17%	22.3%	20.4%	22%	14th	1,191st of 1,707
Population	6,120	378,792	13,018,639	334,922,499	10th	572nd of 1,707
Median household incomeWeakness	$44,773	$80,079	$77,971	$80,734	5th	1,538th of 1,617
Median age	29.1	39.6	40.9	38.9	3rd	1,639th of 1,707
Government workers	6.6%	8.3%	11.5%	14.5%	3rd	1,427th of 1,704
Homeownership rateWeakness	8.3%	65.6%	69.3%	65.2%	1st	1,688th of 1,698
Residents 65 and older	5.4%	17.7%	19.5%	17.2%	1st	1,660th of 1,707
Self-employed workers	1.4%	7.6%	8.2%	10%	1st	1,552nd of 1,704

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

12%

5–17

18%

18–24

28%

25–34

14%

35–44

10%

45–54

55–64

65–74

75+

Median age

29.1

Under 18

17%

65 and over

5.4%

Race and ethnicity

White21%
Black22%
Hispanic52%
Asian3%
Native American0.1%
Pacific Islander0%
Other0.3%
Multiracial1%

Diversity index

63.5

U.S. 61.4

Foreign-born

17.3%

U.S. 14.1%

Born in state

33.5%

Language spoken at home (households)

English only

44%

Spanish

48%

Other Indo-European

Asian / Pacific

Other

Households

Households: 2,576
Average household size: 2
Family households: 45%
Married couples: 15.1%
Living alone: 47.1%
Veterans (of adults): 3.7%
Male / female: 52% / 48%

Income and poverty

Household income distribution

<$25k

22%

$25–50k

32%

$50–75k

18%

$75–100k

10%

$100–150k

$150–200k

$200k+

Median household income

18101

$44,773

Lehigh Co.

$80,079

Pennsylvania

$77,971

United States

$80,734

Per capita income

$28,551

U.S. $44,673

Poverty rate

22.8%

U.S. 12.5%

Households earning $150K+

8.4%

U.S. 23%

Income inequality (Gini)

0.443

U.S. 0.483

Housing

Median home value

18101

$171,300

Lehigh Co.

$300,400

Pennsylvania

$254,500

United States

$332,700

Median gross rent

18101

$1,430

Lehigh Co.

$1,383

Pennsylvania

$1,209

United States

$1,413

Types of housing

Single-family

16%

2–4 units

21%

5–19 units

17%

20+ units

46%

Mobile home

Boat, RV, van

Housing units: 2,786
Owner-occupied: 8.3%
Vacant: 7.5%
Median year built: 1970
Median rooms: 3.4
Renters paying 30%+ of income: 60.7%
Renters paying 50%+ of income: 28.7%
Home value to income: 3.8× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

55%

Carpooled

10%

Transit

Walked

10%

Bicycle

Worked from home

13%

Other

Commute time (one way)

<10 min

10–19

19%

20–29

42%

30–44

16%

45–59

60+

11%

Average commute

28.8 min

U.S. 26.4 min

Unemployment

14.7%

U.S. 5.2%

In labor force

65.7%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Transportation and moving

19%

Healthcare

13%

Office and admin

Cleaning and personal care

Sales

Engineering and science

Management

Food service

Production

Arts, media and sports

Business and finance

Construction and repair

Computer and math

Police and fire

Legal and social services

Education

Farming, fishing and forestry

0.5%

Industries

Health care and social assistance

21%

Transportation, warehousing and utilities

13%

Manufacturing

12%

Restaurants and hotels

11%

Retail

10%

Finance, insurance and real estate

Admin, support and management

Public administration

Arts and recreation

Professional and technical services

Other services

Construction

Information

Education

Wholesale

Agriculture and mining

Median earnings per worker

$37,337

U.S. $49,666

Self-employed

1.4%

U.S. 10%

Government workers

6.6%

U.S. 14.5%

Nonprofit workers

8.6%

U.S. 8.8%

Median earnings by type of work

Type of work	18101	U.S.
Management, business, science and arts	$60,321	$74,888
Service	$25,662	$26,804
Sales and office	$39,511	$40,476
Construction and maintenance	$62,581	$49,199
Production and transportation	$32,830	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

19%

High school

34%

Some college

22%

Associate's

Bachelor's

15%

Graduate

High school graduate or higher: 80.5%
Bachelor's degree or higher: 23.2%
Graduate or professional degree: 8%
Households with broadband: 87.7%
Cable, fiber or DSL: 67%
No internet access: 5.1%
Without health insurance: 12.4%
Limited-English households: 18.2%

Geography

City (USPS): Allentown
State: Pennsylvania
County: Lehigh County
Center point: 40.6032° N, 75.4695° W
Land area: 0.3 sq mi
Water area: under 0.1 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Allentown100% of zip

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

Zip codes near 18101

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
18102	Allentown, PA	0.5 mi	51,001	$43,085	$163,400
18105	Allentown, PA · PO box	1.1 mi	—	—	—
18103	Allentown, PA	2.5 mi	48,746	$72,895	$272,700
18109	Allentown, PA	2.7 mi	18,446	$58,031	$198,800
18032	Catasauqua, PA	3.7 mi	9,555	$81,098	$222,700
18104	Allentown, PA	4.1 mi	48,683	$94,601	$336,400
18052	Whitehall, PA	4.2 mi	29,451	$75,665	$262,900
18018	Bethlehem, PA	4.2 mi	32,965	$75,417	$250,900
18098	Emmaus, PA · PO box	4.6 mi	—	—	—
18099	Emmaus, PA · PO box	4.6 mi	—	—	—
18002	Lehigh Valley, PA · PO box	4.9 mi	—	—	—
18034	Center Valley, PA	5 mi	9,209	$153,200	$475,900

Zip codes like 18101 elsewhere

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

Questions about 18101

What city is zip code 18101?

18101 is assigned to Allentown, Pennsylvania. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 18101 in?

18101 is in Lehigh County, Pennsylvania.

What is the population of 18101?

About 6,120 people live in 18101, according to the Census Bureau's American Community Survey.

What time zone is 18101 in?

18101 is in Eastern Time.

What is the median household income in 18101?

The median household income in 18101 is $44,773.

What zip codes are near 18101?

The closest zip codes to 18101 are 18102, 18105, 18103, 18109, 18032.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 18101, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.