Residential delivery area · Pennsylvania
ZIP Code 17057: Middletown, PA
ZIP code 17057 uses the postal name Middletown, Pennsylvania and lies entirely in Dauphin County (Census 2020 ZIP-county file). About 24,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $73,407 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Middletown (7%) and Royalton (1%); 93% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Middletown · its only residential ZIP
- County
- Dauphin County
- Census places
- Middletown (7%); Royalton (1%)
- Metro area
- Harrisburg-Carlisle, PA
- House district
- PA-10 119th Congress
- State
- Pennsylvania
- Time zone
- Eastern
- Land area
- 31.1 sq mi · 757 people per sq mi
Where is ZIP code 17057?
17057 centers on 40.194°, -76.726° and covers 31.1 square miles of land plus 6.7 of water. It borders 9 ZIP codes: 17034, 17319, 17036, 17113, 17111, 17370, 17022, 17502, 17104.
The map draws ZIP code areas only. For the streets inside 17057, 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 17057 compare with the rest of Dauphin County?
| Measure | 17057 | In Dauphin County | In PA |
|---|---|---|---|
| People (ACS 2020-2024) | 23,560 | 7th of 31 | 165th of 1,833 |
| Median household income | $73k | 11th of 23 | 499th of 1,015 |
| Median home value | $202k | 14th of 22 | 615th of 1,069 |
Its median household income is higher than in 52% 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 17057?
The 2020 Census counted 23,112 people in 17057; the ACS, which samples households over 2020-2024, estimates 23,560. Between the 2010 and 2020 censuses its population grew 8.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 23,560
- 2020 Census count
- 23,112+8.4% since 2010 (21,329)
- Households
- 10,216
- Median age
- 39.8
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 17057?
Of the 23,560 people the ACS estimates in 17057, 19.5% are under 18 and 18.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (75.6%).
- Under 1819.5%
- 18 to 6462.3%
- 65 and older18.3%
- White, not Hispanic75.6%
- Hispanic or Latino9.5%
- Other or two or more6.4%
- Black, not Hispanic5.7%
- Asian, not Hispanic2.8%
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 17057 earn?
Median household income is $73,407 (ACS 2020-2024), the 11th highest of the 23 ranked ZIP codes in Dauphin County. It is not measurably different from 2015-2019 ($76,749 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $73,407
- Income per person
- $40,815
- Below the poverty line
- 10.4%
- Unemployed (of the labor force)
- 2.4%
- Adults 25+ with a bachelor's degree
- 27.2%
- Adjusted gross income per tax return, 2022
- $64,09611,430 returns; wages 73% 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 17057?
FHFA's house price index for 17057, built from repeat sales and appraisals of the same homes, rose 92% from 2015 to 2025 and rose 60% from 2020 to 2025, and moved +8.8% in 2025.
- Median home value (owners' estimate)
- $201,600
- Median gross rent
- $1,198
- Homes owned by their occupants
- 66.6%
- Housing units
- 10,663
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 17057?
454 business establishments had a location in this ZIP code in 2023, 14 fewer than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)54
- Transportation and warehousing51
- Administrative and support and waste management and remediation services48
- Retail trade45
- Accommodation and food services41
- Professional, scientific, and technical services38
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 17057?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 17034 | Highspire | 3,071 | $53k | 3.3 mi |
| 17319 | Etters | 11,292 | $100k | 4.3 mi |
| 17036 | Hummelstown | 23,520 | $116k | 4.4 mi |
| 17113 | Harrisburg | 11,724 | $68k | 5.6 mi |
| 17111 | Harrisburg | 36,744 | $86k | 6.0 mi |
| 17370 | York Haven | 7,090 | $90k | 6.0 mi |
| 17022 | Elizabethtown | 31,908 | $87k | 6.5 mi |
| 17502 | Bainbridge | 2,485 | $73k | 7.1 mi |
| 17104 | Harrisburg | 18,541 | $47k | 8.5 mi |
| 17070 | New Cumberland | 16,830 | $88k | 6.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.