Residential delivery area · Pennsylvania
ZIP Code 18343: Mount Bethel, PA
ZIP code 18343 uses the postal name Mount Bethel, Pennsylvania and lies entirely in Northampton County (Census 2020 ZIP-county file). About 3,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $80,491 (Census Bureau, ACS 2020-2024). Its land lies mostly outside any Census place; under 1% is in small places.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Mount Bethel · its only residential ZIP
- County
- Northampton County
- Metro area
- Allentown-Bethlehem-Easton, PA-NJ
- House district
- PA-7 119th Congress
- State
- Pennsylvania
- Time zone
- Eastern
- Land area
- 20.4 sq mi · 179 people per sq mi
Where is ZIP code 18343?
18343 centers on 40.890°, -75.109° and covers 20.4 square miles of land plus 0.9 of water. It borders 5 ZIP codes: 07833, 18351, 18013, 07832, 07823.
The map draws ZIP code areas only. For the streets inside 18343, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 18343 compare with the rest of Northampton County?
| Measure | 18343 | In Northampton County | In PA |
|---|---|---|---|
| People (ACS 2020-2024) | 3,637 | 18th of 26 | 736th of 1,833 |
| Median household income | $81k | not ranked | not ranked |
| Median home value | $326k | 7th of 21 | 208th of 1,069 |
18343's median household income is not ranked: its 90% margin of error (±$20,508) is more than a quarter of the figure ($80,491). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 61% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 18343?
The 2020 Census counted 3,819 people in 18343; the ACS, which samples households over 2020-2024, estimates 3,637. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 3,637±539 (90% margin)
- 2020 Census count
- 3,819
- Households
- 1,561
- Median age
- 54.2
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 18343?
Of the 3,637 people the ACS estimates in 18343, 13.0% are under 18 and 24.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (87.8%).
- Under 1813.0%
- 18 to 6462.7%
- 65 and older24.3%
- White, not Hispanic87.8%
- Hispanic or Latino8.3%
- Other or two or more2.4%
- Black, not Hispanic1.1%
- Asian, not Hispanic0.3%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 18343 earn?
Median household income is $80,491 (ACS 2020-2024).
- Median household income
- $80,491±$20,508
- Income per person
- $46,293
- Below the poverty line
- 4.0%
- Unemployed (of the labor force)
- 3.2%
- Adults 25+ with a bachelor's degree
- 30.3%
- Adjusted gross income per tax return, 2022
- $81,7512,020 returns; wages 67% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 18343?
FHFA's house price index for 18343, built from repeat sales and appraisals of the same homes, rose 79% from 2015 to 2025 and rose 57% from 2020 to 2025, and moved +13.9% in 2025.
- Median home value (owners' estimate)
- $326,300
- Median gross rent
- $1,066
- Homes owned by their occupants
- 82.2%
- Housing units
- 1,796
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 18343?
95 business establishments had a location in this ZIP code in 2023, 4 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade13
- Accommodation and food services12
- Professional, scientific, and technical services11
- Construction10
- Manufacturing8
- Administrative and support and waste management and remediation services8
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 18343?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 07833 | Delaware, NJ | 70 | – | 2.1 mi |
| 18351 | Portland | 546 | $53k | 2.3 mi |
| 18013 | Bangor | 17,597 | $79k | 3.9 mi |
| 07832 | Columbia, NJ | 3,593 | $106k | 4.4 mi |
| 07823 | Belvidere, NJ | 7,451 | $86k | 5.7 mi |
| 18327 | Delaware Water Gap | 723 | $96k | 6.7 mi (near) |
| 07844 | Hope, NJ | 111 | $80k | 7.4 mi (near) |
| 18063 | Martins Creek | 606 | $65k | 8.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.