Postal Codes

18018 ZIP Code

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ZIP code 18018 covers Bethlehem, Pennsylvania, with a population of about 32,253 and a median household income of $71,968.

Population
32,2536,236 per square mile
Median age
39.50.8 points above the US average
Median household income
$71,9685% below the Pennsylvania median
Poverty rate
15.9%3.5 points above the US average
Typical home value
$303,049up 34.1% in five years
Median rent
$1,2611.1× the Pennsylvania median
Degree or higher
37.1%2.1 points above the US average
Homeownership
54.2%10.8 points below the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
806

Where 18018 is

Bethlehem, Pennsylvania — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population32,253
Median age39.5
Family households50.2%
Born outside the US9.1%
Speaks a language other than English at home19.3%
White (non-Hispanic)64.6%
Black (non-Hispanic)6%
Asian (non-Hispanic)1.7%
Hispanic or Latino23.9%
Veterans5.9%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$71,968
Income per person$48,091
Poverty rate15.9%
Households on SNAP or cash assistance16.2%

Household income distribution

Under $10k4.2%
$10–15k3.9%
$15–20k2.7%
$20–25k4.0%
$25–30k4.0%
$30–35k4.2%
$35–40k4.2%
$40–45k5.1%
$45–50k2.6%
$50–60k5.5%
$60–75k12.5%
$75–100k14.0%
$100–125k11.1%
$125–150k7.6%
$150–200k6.9%
$200k or more7.6%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed16,980
Mean adjusted gross income$67,971
Returns declaring $200,000 or more3.2%
Returns, under $25k27.0%
Returns, $25k–$50k26.6%
Returns, $50k–$75k18.7%
Returns, $75k–$100k10.7%
Returns, $100k–$200k13.8%
Returns, $200k or more3.2%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$224,000
Median gross rent$1,261
Rent as a share of household income29.5%
Owner-occupied54.2%
Vacant homes4%
Median year built1952

What the homes are

Detached house34%
Attached house27.9%
2 to 4 units15.2%
5 to 19 units12.3%
20 or more units10.3%
Mobile home0.2%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$303,049as of 2026-07
Typical home value, 1 yearup 3.8%
Typical home value, 5 yearsup 34.1%
Typical home value, 10 yearsup 92.9%
Typical asking rent$1,834as of 2026-07
Typical asking rent, 1 yearup 1%
Typical asking rent, 5 yearsup 19.3%
Typical home value since 2000
200020132026$303,049$97,193

$97,193 in 2000 to $303,049 in 2026.

Typical asking rent
202120232026$1,834$1,536

$1,536 in 2021 to $1,834 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate5.4%
Bachelor's degree or higher37.1%
High school diploma or higher91.7%
Works from home15.6%
Drives to work alone72.7%
Takes public transport1.7%
Commutes 45 minutes or more8.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Colorectal screening65.9% 1.6 pts above the national average of 64.3%
Visited a dentist60.1% 1.2 pts below the national average of 61.3%
Mammography use77.1% 1.2 pts above the national average of 75.9%
Sleeps under 7 hours36.7% same as the national average of 36.4%
All natural teeth lost13.3% same as the national average of 13%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments806
People employed12,151
Annual payroll$605,470,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 40% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 12 census tracts this ZIP code covers
Expected annual loss37.9 out of 100
Community resilience64.7 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Winter weather87Relatively High at its worst in this ZIP code
Cold wave77.8Relatively High at its worst in this ZIP code
Hurricane71.5Relatively Moderate at its worst in this ZIP code
Heat wave70.2Relatively Moderate at its worst in this ZIP code
Lightning65.9Relatively High at its worst in this ZIP code
Strong wind61Relatively Moderate at its worst in this ZIP code
Earthquake60.7Relatively Moderate at its worst in this ZIP code
River flooding48.3Relatively High at its worst in this ZIP code
Tornado46.9Relatively Moderate at its worst in this ZIP code
Ice storm38.6Relatively Low at its worst in this ZIP code
Landslide38.6Very Low at its worst in this ZIP code
Wildfire34.7Very Low at its worst in this ZIP code
Hail21.4Very Low at its worst in this ZIP code
Drought11.1Very Low at its worst in this ZIP code
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Compared with Pennsylvania and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPPennsylvaniaUnited States
Median household income$71,968$76,081$78,538
Income per person$48,091$43,104$43,289
Poverty rate15.9%11.8%12.4%
Median home value$224,000$240,500$303,400
Median gross rent$1,261$1,162$1,348
Homeownership54.2%69.3%65%
Bachelor's degree or higher37.1%34.5%35%
Unemployment rate5.4%5.2%5.2%
Works from home15.6%13.8%13.5%
Born outside the US9.1%7.4%13.9%
Median age39.540.938.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationALLENTOWN INTL AP, PA US5.4 km away
Rain in a year47 in
Snow in a year33 in

Average high and low by month

January38.4°F / 21.8°F3.3 in rain, 9.8 in snow
February41.6°F / 23.2°F2.77 in rain, 10.8 in snow
March50.8°F / 30.5°F3.63 in rain, 6.3 in snow
April63.4°F / 40.3°F3.67 in rain, 0.5 in snow
May73.5°F / 50.6°F3.65 in rain
June81.9°F / 59.9°F4.4 in rain
July86.4°F / 64.7°F5.3 in rain
August84.3°F / 62.8°F4.56 in rain
September77.4°F / 55.2°F4.84 in rain
October65.5°F / 43.8°F4.14 in rain, 0.2 in snow
November53.8°F / 34.1°F3.24 in rain, 0.9 in snow
December43.1°F / 26.8°F3.86 in rain, 4.6 in snow
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket25% of this ZIP code's area
No vehicle and far from a supermarket24% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Bethlehem Area School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability56more vulnerable than 56% of US census tracts
Socioeconomic status52more vulnerable than 52% of US census tracts
Household characteristics51more vulnerable than 51% of US census tracts
Racial and ethnic minority status51more vulnerable than 51% of US census tracts
Housing type and transport58more vulnerable than 58% of US census tracts
Walkability14.7 out of 20Above average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

18025 Bethlehem, PA1.9 km away
18015 Bethlehem, PA3.2 km away
18017 Bethlehem, PA3.8 km away
18109 Allentown, PA4.1 km away
18002 Lehigh Valley, PA5.1 km away
18020 Bethlehem, PA6.7 km away
18101 Allentown, PA7 km away
18032 Catasauqua, PA7.2 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Lehigh County66.3% of this ZIP code's land area
Northampton County33.7% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area5.17 sq mi
Water area0.13 sq mi
Population density6,236 people per sq mi
Latitude, longitude40.6278, -75.3928

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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