ZIP code
18020
Bethlehem, PA
18020 covers Bethlehem in Northampton County, with 21,144 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 18020. Methodology
ZIP code map of 18020

About ZIP code 18020
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 18020. Not ACS. Methodology
People in 18020
Race
- White15,631
- Black or African American1,282
- American Indian or Alaska Native40
- Asian1,028
- Native Hawaiian and Pacific Islander5
- Other race910
- Two or more races1,686
Hispanic or Latino (any race): 2,492
Age
- Under 101,747
- 10 to 192,789
- 20 to 292,276
- 30 to 392,150
- 40 to 492,498
- 50 to 593,078
- 60 to 693,013
- 70 to 791,935
- 80 and older1,096
Income and housing in 18020
Education
- High school graduate96.1%
- Bachelor's degree41.8%
- Graduate degree16.5%
Places covering 18020
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Middletown36.6%
- Bethlehem0.4%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Northampton County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
63.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 18020
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 20,779 | |
| 2006 | 19,829 | |
| 2007 | 20,409 | |
| 2008 | 20,021 | |
| 2009 | 19,839 | |
| 2010 | 19,877 | |
| 2011 | 20,553 | 19,969 |
| 2012 | 20,648 | 19,630 |
| 2013 | 20,387 | 19,830 |
| 2014 | 20,586 | 19,480 |
| 2015 | 20,512 | 19,640 |
| 2016 | 20,918 | 19,600 |
| 2017 | 20,734 | 19,870 |
| 2018 | 21,044 | 19,760 |
| 2019 | 20,393 | 19,930 |
| 2020 | 21,196 | 19,900 |
| 2021 | 21,275 | 19,830 |
| 2022 | 21,153 | 20,030 |
| 2023 | 21,144 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 18020
12 nearest ZIP centroids (any distance)
- 18045Easton3.1 miPop 29,896 · Income $109,068
- 18017Bethlehem3.3 miPop 40,463 · Income $88,946
- 18016Bethlehem4.4 miPop 0 · Income —
- 18018Bethlehem4.7 miPop 32,253 · Income $71,968
- 18042Easton5.6 miPop 44,797 · Income $75,806
- 18055Hellertown5.7 miPop 11,947 · Income $90,087
- 18064Nazareth5.9 miPop 27,073 · Income $102,857
- 18085Tatamy6.1 miPop 1,162 · Income $104,063
- 18015Bethlehem6.2 miPop 34,259 · Income $58,470
- 18109Allentown6.5 miPop 18,117 · Income $55,437
- 18083Stockertown6.6 miPop 463 · Income $108,333
- 18040Easton7.4 miPop 17,183 · Income $108,994
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 18020, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 18020 FAQ
- What city is ZIP code 18020 in?
- 18020 is in Bethlehem, PA.
- What county is 18020 in?
- 18020 is in Northampton County.
- What is the median household income in 18020?
- The median household income in 18020 is $122,610.
- Which ZIP codes are near 18020?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 18020.