ZIP 18018
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12-month history
Last updated: October 17, 2026
What the numbers show
February. Asking rents in ZIP 18018 usually run 0.9% below trend in February and 0.7% above it in August, about $28 a month apart at today's median. Based on 5 years of data.
Rent in ZIP 18018 is at its highest level since Zillow's records here began in March 2021.
Rent in ZIP 18018 changed +2.9% over the year to September 2026. Across the 205 Pennsylvania ZIP codes Zillow tracks, the typical change was +3.8%.
Rent has risen 2 months in a row, and rose in 8 of the last 12 months.
30% of the median household income ($75,417) is $1,885 a month. That covers HUD's Fair Market Rent for up to a 2-bedroom ($1,750); a 3-bedroom is $2,240.
1st cheapest of 3 ZIP codes in Bethlehem.
ZIP 18109, 2 miles away, rents for 10% less ($1,554/mo), about $2,100 a year in savings.
From Zillow's monthly rent index (ZORI) for ZIP 18018. The seasonal pattern compares Zillow’s seasonally adjusted and unadjusted series. Income is the Census median household income (5-year estimates). Fair Market Rents are HUD’s, which include utilities.
Who lives here
ZIP 18018 (Bethlehem, PA) is roughly split between renters and owners, 38.8% of residents hold a bachelor's degree or higher.
Source: U.S. Census Bureau · ACS 2024 5-Year Estimates
How ZIP 18018 in Bethlehem, PA has changed in 5 years
The median rent in ZIP 18018 in Bethlehem, PA stood at $1,323 in 2021 and currently runs about $1,732, reflecting a 30.9% increase over the period. Census figures show median household income at $75,417 today, compared with $61,323 five years earlier. That spread, with rent up faster than earnings, points to a tougher affordability environment than five years ago. The population has grown by 4.9% since 2021, moving from about 31,417 residents to roughly 32,965. College-educated residents now make up 38.8% of adults here, versus 33.2% in 2021. The combined trend lines point to a market that has changed measurably from where it stood in early 2021.
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Tips for renters in ZIP 18018
Last updated: October 17, 2026
ZIP code 18018 covers Bethlehem, PA. The median rent here is $1,732/mo as of October 2026. A 1-bedroom rents for a median of $1,440/mo. A 2-bedroom rents for a median of $1,750/mo.
At 28% of local median household income ($75,417/yr), ZIP 18018 ranks as affordable compared to the national benchmark of 30%. Rents have increased 2.9% over the past year.
Frequently asked questions
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How does ZIP 18018 compare to other ZIPs in Pennsylvania?
How does ZIP 18018 compare to the rest of Bethlehem?
At $1,732/mo, rent takes ~28% of ZIP 18018's median household income ($75,417/yr). The standard benchmark is 30%.
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