Monmouth, IA ZIP Codes, Coordinates & Counties
Monmouth, Iowa has 1 ZIP code in Jackson county. The approximate center of Monmouth is 42.124, -90.889. Monmouth has about 21,692 known street addresses.
ZIP codes in Monmouth, IA
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 52309 | Jackson | 42.124 | -90.889 |
Counties Monmouth spans
Jackson
Most common streets in Monmouth
17th, 30th, 15th, Division, 4th, 49th, 19th, 12th, 21st, 150th
Frequently asked questions
What ZIP codes are in Monmouth, IA?
Monmouth, Iowa has 1 ZIP code, ranging from 52309 to 52309. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Monmouth, IA in?
Monmouth is in Jackson county.
What are the latitude and longitude of Monmouth, IA?
The approximate center of Monmouth, Iowa is latitude 42.124, longitude -90.889. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Monmouth, IA have?
Monmouth has 1 ZIP code.
How many addresses are in Monmouth, IA?
Monmouth, Iowa has about 21,692 known street addresses in the sthan.io US address database.
What are the most common streets in Monmouth, IA?
Some of the most common street names in Monmouth are 17th, 30th, 15th, Division, 4th, 49th.
What cities are near Monmouth, IA?
Cities near Monmouth include Baldwin (4 mi), Onslow (5 mi), Wyoming (7 mi), Oxford Junction (10 mi), Center Junction (10 mi).
Cities near Monmouth
Baldwin, IA (4 mi) Onslow, IA (5 mi) Wyoming, IA (7 mi) Oxford Junction, IA (10 mi) Center Junction, IA (10 mi) Maquoketa, IA (11 mi) Cascade, IA (12 mi) Bernard, IA (12 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database