Residential delivery area · Pennsylvania
ZIP Code 17527: Gap, PA
ZIP code 17527 uses the postal name Gap, Pennsylvania and lies mostly in Lancaster County (94% of its land) with the rest in Chester County (Census 2020 ZIP-county file). About 6,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $94,788 (Census Bureau, ACS 2020-2024). By Census place, 10% of its land lies in Gap (a census-designated place); 90% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Gap · its only residential ZIP
- County
- Lancaster County (94%); Chester County (6%)
- Census places
- Gap census-designated place
- Metro area
- Lancaster, PA
- House districts
- PA-11 (94%), PA-6 (6%) 119th Congress, by share of land
- State
- Pennsylvania
- Time zone
- Eastern
- Land area
- 21.0 sq mi · 290 people per sq mi
Where is ZIP code 17527?
17527 centers on 40.016°, -75.994° and covers 21.0 square miles of land plus 0.1 of water. It borders 8 ZIP codes: 17535, 19365, 19310, 17557, 17555, 19344, 17509, 19320.
The map draws ZIP code areas only. For the streets inside 17527, 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 17527 compare with the rest of Lancaster County?
| Measure | 17527 | In Lancaster County | In PA |
|---|---|---|---|
| People (ACS 2020-2024) | 6,094 | 29th of 60 | 575th of 1,833 |
| Median household income | $95k | 18th of 44 | 228th of 1,015 |
| Median home value | $325k | 19th of 47 | 210th of 1,069 |
Its median household income is higher than in 77% of U.S. residential ZIP codes, and it is denser than 67% 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 17527?
The 2020 Census counted 6,550 people in 17527; the ACS, which samples households over 2020-2024, estimates 6,094. Between the 2010 and 2020 censuses its population grew 7.7% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 6,094±689 (90% margin)
- 2020 Census count
- 6,550+7.7% since 2010 (6,080)
- Households
- 1,995
- Median age
- 36.6
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 17527?
Of the 6,094 people the ACS estimates in 17527, 23.4% are under 18 and 15.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.6%).
- Under 1823.4%
- 18 to 6461.3%
- 65 and older15.3%
- White, not Hispanic90.6%
- Hispanic or Latino4.3%
- Other or two or more2.5%
- Black, not Hispanic2.5%
- Asian, not Hispanic0.2%
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 17527 earn?
Median household income is $94,788 (ACS 2020-2024), the 18th highest of the 44 ranked ZIP codes in Lancaster County. It is not measurably different from 2015-2019 ($100,715 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $94,788±$11,468
- Income per person
- $36,585
- Below the poverty line
- 7.1%
- Unemployed (of the labor force)
- 0.6%
- Adults 25+ with a bachelor's degree
- 15.4%
- Adjusted gross income per tax return, 2022
- $80,8033,080 returns; wages 52% 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 17527?
FHFA's house price index for 17527, built from repeat sales and appraisals of the same homes, rose 54% from 2015 to 2025 and rose 41% from 2020 to 2025, and moved −8.3% in 2025.
- Median home value (owners' estimate)
- $324,900
- Median gross rent
- $1,250
- Homes owned by their occupants
- 76.0%
- Housing units
- 2,035
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 17527?
239 business establishments had a location in this ZIP code in 2023, 26 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction75
- Retail trade34
- Manufacturing26
- Other services (except public administration)24
- Accommodation and food services19
- Transportation and warehousing10
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 17527?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 17535 | Kinzers | 3,042 | $109k | 2.2 mi |
| 19365 | Parkesburg | 8,006 | $105k | 5.0 mi |
| 19310 | Atglen | 2,950 | $82k | 5.7 mi |
| 17557 | New Holland | 15,055 | $83k | 7.4 mi |
| 17555 | Narvon | 7,251 | $116k | 7.5 mi |
| 19344 | Honey Brook | 12,827 | $87k | 7.6 mi |
| 17509 | Christiana | 5,135 | $77k | 7.8 mi |
| 19320 | Coatesville | 55,941 | $91k | 9.3 mi |
| 17529 | Gordonville | 4,826 | $80k | 5.7 mi (near) |
| 19369 | Sadsburyville | 122 | $133k | 5.8 mi (near) |
| 17562 | Paradise | 4,373 | $109k | 6.1 mi (near) |
| 17534 | Intercourse | 0 | – | 6.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.