18011 ZIP Code — Alburtis, PA

Lehigh County, Pennsylvania

ZIP code 18011 is located in Alburtis, Pennsylvania, within Lehigh County. It covers approximately 17.12 square miles and serves a population of 5,639 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 610.

About ZIP code 18011

The housing stock consists of a mix of housing types. Most homes were built in the pre-1940, giving the area an established character. Median home value is $252,500. Owner-occupancy is high at 89%, well above the national average.

Median household income is $102,161. The poverty rate of 3% is below the national average. 31% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 26 minutes is near the national average.

Educational attainment is near the national average, with 37% of residents holding a bachelor's degree or higher.

Overall, ZIP code 18011 reflects a community defined by high homeownership and a significant Social Security-dependent population.

5,639

population

17.12

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

18011 ZIP code map

Cities in ZIP code 18011

Below are the cities the US Postal Service accepts for ZIP code 18011. Using any city not on this list may result in mail delivery delays.

City	Status
Alburtis	Preferred

Nearby ZIP codes

19539 Mertztown (2.4 mi) 19562 Topton (3.2 mi) 18062 Macungie (3.3 mi) 18031 Breinigsville (4.8 mi) 18056 Hereford (4.9 mi) 18087 Trexlertown (5.3 mi) 19504 Barto (6 mi) 18070 Palm (6.2 mi) 19503 Bally (6.3 mi) 19505 Bechtelsville (7.2 mi) 18106 Allentown (7.6 mi) 18195 Allentown (7.7 mi)

Demographics updated 05/2026

Population
Total population	5,639
Population density	329 / sq mi
State FIPS	42
County FIPS	077

Geography
Land area	17.12 sq mi
Water area	0.05 sq mi
Latitude	40.4820
Longitude	-75.6424
Timezone	Eastern (ET)
Area code	610

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	18.4%	37.9%	39.8%
$50k – $100k	34.4%	30.5%	30.8%
$100k – $200k	39.5%	24.2%	22.4%
Over $200k	7.7%	7.4%	7.1%

Demographics & statistics

5,639

Population

329

People per sq mi

37.5

Median age

$102,161

Median household income

$41,092

Per capita income

$252,500

Median home value

$1,542

Median monthly rent

89.1%

Home ownership

3.0%

Poverty rate

6.2%

Unemployment

1,906

Housing units

37.3%

Bachelor's or higher

Age distribution

Male Female

223

Under 5

207

249

5–9

233

200

10–14

187

146

15–19

136

164

20–24

152

349

25–34

326

396

35–44

370

387

45–54

360

203

55–59

190

102

60–64

350

65–74

327

139

75–84

130

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,448	25.7%
18 and over	4,191	74.3%
65 and over	963	17.1%
Median age	37.5 years

Race & ethnicity

White 74.5%

Hispanic or Latino 8.4%

Other race 6.5%

Two or more races 4.3%

Asian 3.3%

Black or African American 2.9%

American Indian / Alaska Native 0.1%

Group	Count	%
White	4,586	74.5%
Hispanic or Latino	519	8.4%
Other race	401	6.5%
Two or more races	264	4.3%
Asian	204	3.3%
Black or African American	176	2.9%
American Indian / Alaska Native	8	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	18.4%	37.9%	39.8%
$50k – $100k	34.4%	30.5%	30.8%
$100k – $200k	39.5%	24.2%	22.4%
Over $200k	7.7%	7.4%	7.1%

Under $10k 0.5%

$10k–$15k 2.2%

$15k–$25k 2.6%

$25k–$35k 5.2%

$35k–$50k 5.2%

$50k–$75k 15.9%

$75k–$100k 15.5%

$100k–$150k 30.4%

$150k–$200k 13.6%

$200k+ 9.0%

Range	% of households
Under $10k	0.5%
$10k–$15k	2.2%
$15k–$25k	2.6%
$25k–$35k	5.2%
$35k–$50k	5.2%
$50k–$75k	15.9%
$75k–$100k	15.5%
$100k–$150k	30.4%
$150k–$200k	13.6%
$200k+	9.0%
Median income	$102,161

Housing

Home values

Under $50k 3.0%

$100k–$150k 8.1%

$150k–$200k 12.7%

$200k–$300k 43.6%

$300k–$500k 25.2%

$500k–$1M 7.2%

$1M+ 0.2%

Housing overview

Metric	Value
Median home value	$252,500
Median rent / month	$1,542
Owner occupied	89.1%
Renter occupied	10.9%
Vacant	6.3%
Single-family detached	58.5%
Large apartment buildings	0.0%
Mobile homes	5.3%
Median rooms	6.1
Avg household size (owned)	2.86

Year built

Era	%
2020 or later	0.0%
2010–2019	6.4%
2000–2009	18.9%
1990–1999	17.4%
1980–1989	8.1%
1970–1979	11.2%
1960–1969	7.4%
1950–1959	6.3%
1940–1949	2.1%
1939 or earlier	22.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.3%
2 bedrooms	12.6%
3 bedrooms	66.7%
4 bedrooms	18.1%
5+ bedrooms	2.3%

Vehicles per household

Vehicles	% of households
No vehicle	1.8%
1 vehicle	20.7%
2 vehicles	47.3%
3 or more	30.3%

Heating fuel

Fuel type	%
Utility gas	16.7%
Electricity	36.1%
Propane / LP gas	8.0%
Fuel oil	25.9%
Wood	10.4%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	1,152	57.9%
Cohabiting couple	223	11.2%
Male householder, no spouse	307	15.4%
Female householder, no spouse	307	15.4%
Households with children under 18	719	36.1%
Households with seniors (65+)	670	33.7%
Average household size	2.84

Marital status

Status	Male	Female
Never married	33.0%	23.9%
Married	51.9%	58.1%
Separated	2.2%	0.0%
Widowed	3.3%	6.2%
Divorced	9.5%	11.7%

Education

Less than 9th grade 1.5%

Some HS, no diploma 3.2%

HS graduate 28.3%

Some college, no degree 19.6%

Associate's degree 10.0%

Bachelor's degree 24.8%

Graduate / professional 12.5%

Metric	%
HS diploma or higher	95.3%
Bachelor's or higher	37.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	103	7.5%
Kindergarten	121	8.8%
Elementary school	666	48.3%
High school	232	16.8%
College / grad school	258	18.7%

Employment

Industry of employment

Education & healthcare 22.2%

Manufacturing 16.1%

Retail trade 12.3%

Professional & management 8.8%

Other services 8.3%

Construction 7.5%

Transportation & utilities 6.7%

Arts, food & hospitality 4.9%

Wholesale trade 4.0%

Finance & real estate 3.2%

Public administration 3.0%

Information 2.7%

Agriculture & mining 0.4%

Occupation

Category	%
Management, business & arts	35.2%
Service	16.1%
Sales & office	20.8%
Natural resources & construction	10.3%
Production & transportation	17.7%

Employment type

Type	%
Private sector	86.0%
Government	9.4%
Self-employed	4.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	83.7%
Carpool	7.2%
Public transit	0.0%
Walk	0.3%
Work from home	8.4%
Other means	0.3%
Avg commute (minutes)	25.5

Poverty

All people 3.0%

Under 18 years 2.4%

18 and over 3.2%

Married-couple families 0.4%

Female-led households 7.3%

Income support

Source	% of households
Social Security	31.4%
Retirement income	25.9%
Supplemental Security	3.4%
Cash public assistance	0.7%
Food stamps / SNAP	7.9%

Health indicators

Condition	%
Obesity	33.6%
High blood pressure	27.1%
High cholesterol	29.7%
Diabetes	8.1%
Heart disease	4.9%
Stroke	2.2%
Asthma	9.8%
Arthritis	22.3%
Kidney disease	2.2%
Pulmonary disease	5.6%
Cancer	5.8%

Behavior / access	%
Smoking	17.0%
Binge drinking	21.0%
No physical activity	19.5%
Less than 7 hrs sleep	35.9%
Depression	22.0%
Fair or poor health	10.8%
Poor mental health	15.0%
Poor physical health	8.8%
No health insurance	9.1%
Visited doctor (checkup)	76.3%
Visited dentist	71.5%
Cholesterol screening	89.9%
Teeth loss	11.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	350	8.4%

Disability	%
Any disability	7.8%
Under 18	2.8%
18–64 years	5.9%
65 and over	21.3%

Health insurance coverage

Type	%
Private insurance	78.1%
Public insurance	30.5%
No insurance	5.5%
Uninsured under 19	6.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	5,209	92.4%
Spanish	258	5.0%
Other Indo-European	180	3.5%
Asian & Pacific Islander	14	0.3%
Other languages	64	1.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	5,236	92.9%
Born in same state	5,145	91.2%
Born in different state	4,154	73.7%
Foreign born	91	1.6%
Naturalized citizen	403	7.1%
Not a US citizen	293	72.7%

Ancestry

Ancestry	Count	%
Italian	556	9.9%
Arab	344	6.1%
French	251	4.5%
English	77	1.4%
Irish	24	0.4%

Ancestry	Count	%
Norwegian	16	0.3%
Dutch	11	0.2%
Polish	6	0.1%
German	2	0%

Technology access

Metric	% of households
Computer access	35.3%
Internet access	96.3%

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

Frequently asked questions about ZIP code 18011

What city is ZIP code 18011 in?

ZIP code 18011 is primarily assigned to Alburtis, Pennsylvania.

What county is ZIP code 18011 in?

ZIP code 18011 falls within Lehigh County, Pennsylvania.

Is ZIP code 18011 mostly owner-occupied?

89% of occupied units in ZIP code 18011 are owner-occupied, well above the national average.

What is the population of ZIP code 18011?

ZIP code 18011 has an estimated population of 5,639 residents, with a density of 329 people per square mile.

What is the median household income in ZIP code 18011?

The median household income in ZIP code 18011 is $102,161, above the national median of ~$75,000.

What is the typical home value in ZIP code 18011?

The median home value in ZIP code 18011 is $252,500.

What timezone is ZIP code 18011 in?

ZIP code 18011 observes the EST timezone.