O'Neill, Iowa
O'Neill: a city in Dubuque County, Iowa.
About
O'Neill is a city located in the county of Dubuque in the U.S. state of Iowa.
Quick Facts about O'Neill
| State | Iowa (United States) |
| County | Dubuque County |
| Latitude & Longitude | 42.6089,-90.8868 |
| Time Zone | America/Chicago |
| Local time | 23:41:29 (6th November 2026) |
| Weather | 47℉ Mostly Sunny 7-days weather |
Geography
O'Neill is located at 42°36'32"N 90°53'12"W (42.6088900, -90.8868000).
O'Neill map
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Weather
47°F
Mostly Sunny
5 to 10 mph N
Today
Mostly sunny. High near 47, with temperatures falling to around 44 in the afternoon. North wind 5 to 10 mph.
7-Day ForecastNearby Schools and Colleges
Schools and campuses linked to O'Neill, IA. Select a name to open its map and contact details.
| Code | Name | City | ZIP |
|---|---|---|---|
| 153241 | Divine Word College | Epworth (IA) | 52045 |
| 153302 | Emmaus Bible College | Dubuque (IA) | 52001-3096 |
| 153126 | Clarke University | Dubuque (IA) | 52001-3198 |
| 153278 | University of Dubuque | Dubuque (IA) | 52001 |
Closest post offices linked to O'Neill.
| Post Office Name | City | ZIP |
|---|---|---|
| Holy Cr Post Office | Holy Cross (IA) | 52053 |
Other cities in Dubuque County
Cities, towns, neighborhoods & other populated places in Dubuque County , IA.
| City Name | Population | Title |
|---|---|---|
| Dubuque | 57,781 | The most populous city in Dubuque County, Iowa. |
| Asbury | 5,841 | City in Iowa, United States |
| Dyersville | 4,441 | City in Iowa, USA |
| Cascade | 2,350 | City in Iowa, United States |
| Epworth | 2,022 | City in Iowa, United States |
| Peosta | 1,919 | City in Dubuque County, Iowa, United States |
| Farley | 1,746 | City in Iowa |