In which county is ZIP code 52309 located?

ZIP 52309 is listed under Jackson, IA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 52309: Monmouth, IA

ZIP: 52309

County: Jackson

Coordinates: 42.07720, -90.87860

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Monmouth, IA postal area 52309. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Monmouth
ZIP Code	52309
County	Jackson
State	IA
Latitude / Longitude	42.07720, -90.87860
ZIP Type	Standard
Time Zone	Central Time (CT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 52309 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 52309 are listed as 42.07720 / -90.87860, useful for GPS and service checks in and around Monmouth, IA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 52309 for mail delivery and general location reference in Jackson, IA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Monmouth within IA.

Frequently Asked Questions

What is the primary city for ZIP code 52309?

The primary city for this ZIP code is Monmouth, located in IA.

In which county is 52309 located?

ZIP code 52309 is situated within Jackson, IA.

What are the coordinates for 52309?

The approximate center point is 42.07720 (Latitude) and -90.87860 (Longitude).

Is ZIP code 52309 active?

This page lists ZIP 52309 as Listed based on the latest refresh date shown above.

Does ZIP 52309 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