In which county is ZIP code 17020 located?

ZIP 17020 is listed under Perry County, PA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 17020: Duncannon, PA

ZIP: 17020

County: Perry County

Coordinates: 40.40870, -77.04730

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 17020 in Duncannon, PA. We include verified county details for Perry County plus key geographic references used for mapping and logistics.

Primary City	Duncannon
ZIP Code	17020
County	Perry County
State	PA
Latitude / Longitude	40.40870, -77.04730
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 17020 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 17020 is commonly represented around 40.40870, -77.04730. These coordinates help identify the general area within Perry County, PA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 17020 for mail delivery and general location reference in Perry County, PA.

Some addresses near Duncannon may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Duncannon within PA.

Frequently Asked Questions

What is the primary city for ZIP code 17020?

The primary city for this ZIP code is Duncannon, located in PA.

In which county is 17020 located?

ZIP code 17020 is situated within Perry County, PA.

What are the coordinates for 17020?

The approximate center point is 40.40870 (Latitude) and -77.04730 (Longitude).

Is ZIP code 17020 active?

This page lists ZIP 17020 as Listed based on the latest refresh date shown above.

Does ZIP 17020 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08