Residential delivery area · Pennsylvania
ZIP Code 18106: Allentown, PA
ZIP code 18106 uses the postal name Allentown, Pennsylvania and lies entirely in Lehigh County (Census 2020 ZIP-county file). About 6,200 people live there (Census Bureau, ACS 2020-2024), the 5th most populous of Allentown's 7 residential ZIP codes. Median household income is $92,813 (Census Bureau, ACS 2020-2024). By Census place, 15% of its land lies in Wescosville (a census-designated place), and 3% in smaller places; 82% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Allentown · 7 residential ZIPs
- County
- Lehigh County
- Census places
- Wescosville census-designated place
- Metro area
- Allentown-Bethlehem-Easton, PA-NJ
- House district
- PA-7 119th Congress
- State
- Pennsylvania
- Time zone
- Eastern
- Land area
- 8.0 sq mi · 782 people per sq mi
- PO Box ZIPs
- 18105 also use the name Allentown
Where is ZIP code 18106?
18106 centers on 40.564°, -75.565° and covers 8.0 square miles of land plus 0.1 of water. It borders 9 ZIP codes: 18046, 18087, 18104, 18195, 18103, 18062, 18031, 18069, 18051.
The map draws ZIP code areas only. For the streets inside 18106, 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 18106 compare with the rest of Allentown?
| Measure | 18106 | In Allentown | In Lehigh County | In PA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 6,226 | 5th of 7 | 20th of 35 | 567th of 1,833 |
| Median household income | $93k | 2nd of 6 | 15th of 27 | 252nd of 1,015 |
| Median home value | $412k | 1st of 5 | 6th of 28 | 108th of 1,069 |
Its median household income is higher than in 76% of U.S. residential ZIP codes, and it is denser than 76% of all 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 18106?
The 2020 Census counted 7,477 people in 18106; the ACS, which samples households over 2020-2024, estimates 6,226. Between the 2010 and 2020 censuses its population grew 8.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 6,226±925 (90% margin)
- 2020 Census count
- 7,477+8.5% since 2010 (6,889)
- Households
- 2,513
- Median age
- 46.5
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 18106?
Of the 6,226 people the ACS estimates in 18106, 22.4% are under 18 and 24.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (72.0%), then Hispanic or Latino (13.4%).
- Under 1822.4%
- 18 to 6453.6%
- 65 and older24.0%
- White, not Hispanic72.0%
- Hispanic or Latino13.4%
- Asian, not Hispanic10.2%
- Black, not Hispanic2.4%
- Other or two or more2.1%
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 18106 earn?
Median household income is $92,813 (ACS 2020-2024), the 15th highest of the 27 ranked ZIP codes in Lehigh County. It is not measurably different from 2015-2019 ($84,508 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $92,813±$12,995
- Income per person
- $50,875
- Below the poverty line
- 6.6%
- Unemployed (of the labor force)
- 8.4%
- Adults 25+ with a bachelor's degree
- 49.4%
- Adjusted gross income per tax return, 2022
- $102,2523,690 returns; wages 69% 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 18106?
FHFA's house price index for 18106, built from repeat sales and appraisals of the same homes, rose 85% from 2015 to 2025 and rose 57% from 2020 to 2025, and moved +4.4% in 2025.
- Median home value (owners' estimate)
- $412,200
- Median gross rent
- $1,419
- Homes owned by their occupants
- 82.5%
- Housing units
- 2,594
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 18106?
631 business establishments had a location in this ZIP code in 2023, 34 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance70
- Professional, scientific, and technical services65
- Wholesale trade60
- Retail trade60
- Administrative and support and waste management and remediation services49
- Other services (except public administration)48
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 18106?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 18046 | East Texas | 201 | – | 1.1 mi |
| 18087 | Trexlertown | 590 | $73k | 1.6 mi |
| 18104 | Allentown | 48,683 | $95k | 3.4 mi |
| 18195 | Allentown | 0 | – | 3.4 mi |
| 18103 | Allentown | 48,746 | $73k | 4.0 mi |
| 18062 | Macungie | 27,110 | $111k | 4.1 mi |
| 18031 | Breinigsville | 11,570 | $114k | 4.4 mi |
| 18069 | Orefield | 8,515 | $118k | 5.0 mi |
| 18051 | Fogelsville | 3,624 | $140k | 5.8 mi |
| 18049 | Emmaus | 18,941 | $94k | 4.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.