Bethlehem, PA ZIP Codes
4 ZIP codes serve Bethlehem, Pennsylvania: 18017, 18015, 18018 and 18020. Together they are home to 129,661 residents in 50,657 households. That is more than the 77,956 people counted inside Bethlehem city limits, because these ZIP codes reach past its boundary. Median household income ranges from $60,800 in 18015 to $126,166 in 18020.
Bethlehem city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 77,956 |
| Households | 31,052 |
| Median household income | $68,879 |
| Median home value | $260,400 |
| Median age | 36.1 |
| Median rent | $1,382 |
All 4 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 129,661 |
| Households (sum of ZIP codes) | 50,657 |
| Median household income, range across ZIP codes | $60,800 (18015) to $126,166 (18020) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $84,879 |
| Homeowners | 62.1% |
| Households with kids under 18 | 25.6% |
| Moved in the past year | 12.9% |
| Carrier routes in EDDM2GO's route library | 103 routes, 53,393 homes (4 of 4 ZIP codes) |
Top facts
- Highest median household income in Bethlehem: 18020 ($126,166)
- Most residents: 18017 (40,640 people)
- Highest homeownership: 18020 (85.8% own their home)
- Most households with kids: 18020 (30.4% of households)
- Most new movers: 18015 (16.9% moved in last year)
- Youngest median age: 18015 (31.2 years)
- Highest median home value: 18020 ($370,200)
Every ZIP code in Bethlehem
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 18017 | Bethlehem | 40,640 | 16,597 | $91,173 | $336,100 | 67.0% | 27.0% | 11.4% | 35 | 17,778 | 41% of its land; mailing city |
| 18015 | Bethlehem | 34,852 | 12,150 | $60,800 | $281,700 | 50.5% | 26.6% | 16.9% | 22 | 13,862 | 30% of its land; mailing city |
| 18018 | Bethlehem | 32,965 | 14,119 | $75,417 | $250,900 | 53.2% | 20.6% | 14.1% | 28 | 16,588 | 98% of its land; mailing city |
| 18020 | Bethlehem | 21,204 | 7,791 | $126,166 | $370,200 | 85.8% | 30.4% | 7.1% | 18 | 8,979 | mailing city |
A ZIP code is listed for Bethlehem when at least 10% of its land lies inside Bethlehem city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Bethlehem. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Bethlehem.
Counties
- Northampton County — 24 ZIP codes
- Lehigh County — 32 ZIP codes
Nearby cities sharing these ZIP codes
- Middletown (Northampton County) — 1 ZIP code
Price a mailing to Bethlehem ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Bethlehem, PA?
- 18017, 18015, 18018 and 18020. A ZIP code is listed for Bethlehem when at least 10% of its land lies inside Bethlehem city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Bethlehem.
- What is the population of Bethlehem, PA?
- The Census Bureau counts 77,956 residents inside Bethlehem city limits (ACS 2020–2024). The 4 ZIP codes that serve Bethlehem hold 129,661 residents in all.
- What is the median household income in Bethlehem, PA?
- $68,879 inside Bethlehem city limits, per the Census Bureau. Across its ZIP codes the medians run from $60,800 to $126,166.
- Which Bethlehem ZIP code has the highest median household income?
- 18020, at $126,166, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Bethlehem, PA?
- For the 4 of 4 ZIP codes in EDDM2GO's stored route library: 103 carrier routes reaching 53,393 residential and 3,812 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.