What city is 17057 in?

17057 is a Middletown, PA mailing address. By land area, 7% lies inside Middletown and 1% lies inside Royalton; the rest is outside any Census-defined city or community.

What is the population of 17057?

About 23,560 people (±559), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 23,112.

What is the median household income in 17057?

$73,407 (±$3,704), 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 17057?

17 USPS carrier routes with 9,676 residential and 474 business mailboxes (10,152 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 17057?

The closest, measured center to center: 17034 (3.3 mi, Highspire borough, PA), 17319 (4.3 mi, Valley Green), 17036 (4.4 mi, Hershey), 17113 (5.6 mi, Steelton borough, PA), 17111 (6 mi, Lawnton) and 17370 (6 mi, York Haven borough, PA).

17057 ZIP Code, Middletown, PA

17057 is a ZIP code in Middletown, Pennsylvania in Dauphin County. It covers 31 square miles of land. The closest ZIP codes are 17034, 17319 and 17036. 23,560 people live here in 10,216 households, more than in 9 of every 10 Pennsylvania ZIP codes. With about 757 people per square mile it is lightly settled, and owners and renters are mixed (67% own). Median household income is $73,407, close to the Pennsylvania median of $77,971.

Quick facts

Mailing city: Middletown, PA
County: Dauphin County
Land area: 31 sq mi
Population: 23,560
Median household income: $73,407
Carrier routes: 17 (9,676 homes)

Key figures

Measure	Value
Residents	23,560
Households	10,216
Median household income	$73,407
Income per person	$40,815
Median age	39.8
Homeowners	66.6%
Median home value	$201,600
Median rent	$1,198
Bachelor's degree or higher	27.2%
Average commute (minutes)	22
Households with kids under 18	25.0%
Moved in the past year	9.9%
Below the poverty line	10.4%
Broadband internet	90.5%
Speak a non-English language at home	9.0%

Household income

% of households	Value
<$10K	6.3%
$10–15K	2.0%
$15–25K	3.6%
$25–35K	8.1%
$35–50K	13.7%
$50–75K	18.2%
$75–100K	15.6%
$100–150K	16.5%
$150–200K	7.2%
$200K+	8.8%

Age

% of all residents	Value
<10	11.6%
10–19	11.2%
20–24	8.1%
25–34	15.7%
35–44	9.7%
45–54	10.7%
55–64	14.8%
65–74	11.5%
75+	6.8%

Tenure

% of housing units	Value
Owned, with mortgage	42.4%
Owned outright	22.2%
Rented	31.3%
Vacant	4.1%

Type of building

% of housing units	Value
Detached house	54.0%
Townhome	16.5%
2–4 units	5.8%
5–19 units	8.3%
20+ units	7.7%
Mobile / other	7.7%

Businesses in 17057

454 business establishments with 15,194 employees (ZIP Codes Business Patterns 2023).

Other Services (except Public Administration): 54
Transportation and Warehousing: 51
Administrative and Support and Waste Management and Remediation Services: 48
Retail Trade: 45
Accommodation and Food Services: 41
Professional, Scientific, and Technical Services: 38
Construction: 33
Health Care and Social Assistance: 30

EDDM carrier routes

17057 has 17 USPS carrier routes with 9,676 residential and 474 business mailboxes. Open the EDDM route map.

Carrier routes in 17057

17057 has 17 USPS carrier routes (14 city (C), 3 rural (R)) with 9,676 residential and 474 business mailboxes. Routes range from 331 homes (R003) to 865 homes (C012); the median route has 538 homes. The Census counted 10,216 households in 17057 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	5
500–749	11
750–999	1
1,000–1,499	0
1,500+	0

Best routes in 17057 for…

Most businesses

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

Route C014 — USPS business mailboxes 88, 647 homes
Route C013 — USPS business mailboxes 69, 445 homes
Route C008 — USPS business mailboxes 57, 738 homes
Route C017 — USPS business mailboxes 53, 505 homes
Route R003 — USPS business mailboxes 35, 331 homes

Select these 5 routes on the route map

Every carrier route in 17057

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C002	City	475	4	$40,847	—	—	—
C003	City	455	28	$63,441	—	—	—
C004	City	708	13	$80,627	—	—	—
C005	City	639	32	$114,265	—	—	—
C007	City	500	30	$78,429	—	—	—
C008	City	738	57	$37,600	—	—	—
C009	City	649	17	$57,444	—	—	—
C010	City	511	1	$50,809	—	—	—
C011	City	686	7	$50,809	—	—	—
C012	City	865	16	$56,240	—	—	—
C013	City	445	69	$120,592	—	—	—
C014	City	647	88	$40,847	—	—	—
C015	City	412	1	$80,627	—	—	—
C017	City	505	53	$40,153	—	—	—
R001	Rural	538	18	$82,894	—	—	—
R002	Rural	572	5	$114,265	—	—	—
R003	Rural	331	35	$120,592	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 17057 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

17034 — Highspire borough, PA (3.3 mi)
17319 — Valley Green CDP, PA (4.3 mi)
17036 — Hershey CDP, PA (4.4 mi)
17113 — Steelton borough, PA (5.6 mi)
17111 — Lawnton CDP, PA (6 mi)
17370 — York Haven borough, PA (6 mi)
17022 — Elizabethtown borough, PA (6.5 mi)
17070 — New Cumberland borough, PA (6.8 mi)

Areas that include 17057

Mail every home in 17057

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) 17057, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 17057 in?: 17057 is a Middletown, PA mailing address. By land area, 7% lies inside Middletown and 1% lies inside Royalton; the rest is outside any Census-defined city or community.
What county is 17057 in?: 17057 is in Dauphin County.
What is the population of 17057?: About 23,560 people (±559), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 23,112.
What is the median household income in 17057?: $73,407 (±$3,704), 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 17057?: 17 USPS carrier routes with 9,676 residential and 474 business mailboxes (10,152 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 17057?: The closest, measured center to center: 17034 (3.3 mi, Highspire borough, PA), 17319 (4.3 mi, Valley Green), 17036 (4.4 mi, Hershey), 17113 (5.6 mi, Steelton borough, PA), 17111 (6 mi, Lawnton) and 17370 (6 mi, York Haven borough, PA).

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