In which county is ZIP code 45490 located?

ZIP 45490 is listed under Montgomery, OH.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 45490: Dayton, OH

ZIP: 45490

County: Montgomery

Coordinates: 39.75050, -84.26860

ZIP Type: Standard

Time Zone: Eastern Time (ET)

This profile provides an in-depth look at ZIP code 45490, serving Dayton in OH. It lies in Montgomery and supports delivery, planning, and address verification.

Primary City	Dayton
ZIP Code	45490
County	Montgomery
State	OH
Latitude / Longitude	39.75050, -84.26860
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 45490 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 45490 are listed as 39.75050 / -84.26860, useful for GPS and service checks in and around Dayton, OH.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 45490 for mail delivery and general location reference in Montgomery, OH.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Dayton.

Related ZIP Codes (Nearby)

Explore other postal codes near Dayton within OH.

Frequently Asked Questions

What is the primary city for ZIP code 45490?

The primary city for this ZIP code is Dayton, located in OH.

In which county is 45490 located?

ZIP code 45490 is situated within Montgomery, OH.

What are the coordinates for 45490?

The approximate center point is 39.75050 (Latitude) and -84.26860 (Longitude).

Is ZIP code 45490 active?

This page lists ZIP 45490 as Listed based on the latest refresh date shown above.

Does ZIP 45490 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