18017 ZIP Code, Bethlehem, PA

18017 is a ZIP code in Bethlehem, Pennsylvania — mostly in Northampton County (95% of its land), with smaller parts in Lehigh County. It covers 17 square miles of land. The closest ZIP codes are 18018, 18020 and 18109. 40,640 people live here in 16,597 households, more than in 9 of every 10 Pennsylvania ZIP codes. At about 2,425 people per square mile it has suburban density, and owners and renters are mixed (67% own). Median household income is $91,173, above the Pennsylvania median of $77,971; the median age is 45.0, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents40,640
Households16,597
Median household income$91,173
Income per person$46,344
Median age45
Homeowners67.0%
Median home value$336,100
Median rent$1,597
Bachelor's degree or higher40.9%
Average commute (minutes)23.3
Households with kids under 1827.0%
Moved in the past year11.4%
Below the poverty line10.5%
Broadband internet89.1%
Speak a non-English language at home22.4%

Household income

% of householdsValue
<$10K3.2%
$10–15K2.7%
$15–25K6.2%
$25–35K6.3%
$35–50K10.3%
$50–75K13.6%
$75–100K12.0%
$100–150K22.8%
$150–200K11.1%
$200K+11.9%

Age

% of all residentsValue
<1011.4%
10–1911.0%
20–245.0%
25–3411.4%
35–4411.2%
45–5410.8%
55–6412.7%
65–7414.3%
75+12.2%

Tenure

% of housing unitsValue
Owned, with mortgage38.3%
Owned outright27.4%
Rented31.5%
Vacant2.8%

Type of building

% of housing unitsValue
Detached house58.8%
Townhome20.7%
2–4 units6.4%
5–19 units6.7%
20+ units7.4%
Mobile / other0.0%

Businesses in 18017

985 business establishments with 28,324 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

18017 has 35 USPS carrier routes with 16,654 residential and 1,124 business mailboxes. Open the EDDM route map.

Carrier routes in 18017

18017 has 35 USPS carrier routes (28 city (C), 7 rural (R)) with 16,654 residential and 1,124 business mailboxes. Routes range from 266 homes (C019) to 860 homes (C094); the median route has 481 homes. The Census counted 16,597 households in 18017 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–49919
500–74914
750–9991
1,000–1,4990
1,500+0

Best routes in 18017 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route C086 — USPS business mailboxes 247, 0 homes
  2. Route R016 — USPS business mailboxes 141, 447 homes
  3. Route C019 — USPS business mailboxes 117, 266 homes
  4. Route R015 — USPS business mailboxes 85, 268 homes
  5. Route C052 — USPS business mailboxes 64, 552 homes

Select these 5 routes on the route map

Every carrier route in 18017

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C019City266117$96,715———
C046City6507$137,066———
C047City70441$86,993———
C048City51555$17,327———
C052City55264$78,853———
C054City4252$88,721———
C061City3520$98,134———
C062City32733$109,243———
C063City39727$113,290———
C065City4180$137,066———
C069City3262$70,389———
C070City47229$88,721———
C071City3823$88,721———
C072City52511$70,389———
C073City4915$137,066———
C075City4585$90,515———
C077City5153$114,461———
C078City56951$13,276———
C080City4149$90,573———
C082City61211$96,715———
C083City4420$114,461———
C086City0247$32,353———
C087City4160$96,715———
C089City63528$56,696———
C092City4824$96,715———
C093City3741$17,327———
C094City86010$38,264———
C095City5564$96,715———
R006Rural48055$95,245———
R008Rural52124$53,323———
R010Rural64128$86,858———
R013Rural6501$86,858———
R014Rural51221$114,234———
R015Rural26885$53,323———
R016Rural447141$53,323———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 18017 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 18017

Where it ranks

Mail every home in 18017

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 18017, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 18017 in?
18017 is a Bethlehem, PA mailing address. By land area, 41% lies inside Bethlehem and 4% lies inside Freemansburg; the rest is outside any Census-defined city or community.
What county is 18017 in?
18017 is mostly in Northampton County (95% of its land), with smaller parts in Lehigh County.
What is the population of 18017?
About 40,640 people (±1,047), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 39,663.
What is the median household income in 18017?
$91,173 (±$5,052), compared with $77,971 for Pennsylvania as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 18017?
35 USPS carrier routes with 16,654 residential and 1,124 business mailboxes (17,778 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 18017?
The closest, measured center to center: 18018 (2.3 mi, Bethlehem), 18020 (3.3 mi, Middletown), 18109 (3.3 mi, Allentown), 18032 (4.2 mi, Catasauqua borough, PA), 18015 (5.1 mi, Bethlehem) and 18101 (5.8 mi, Allentown).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.