Janesville, IA ZIP Codes, Coordinates & Counties
Janesville, Iowa has 1 ZIP code in Bremer county. The approximate center of Janesville is 42.649, -92.483. Janesville has about 24,156 known street addresses.
ZIP codes in Janesville, IA
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 50647 | Bremer | 42.649 | -92.483 |
Counties Janesville spans
Bremer
Most common streets in Janesville
Winslow, Sycamore, Taylor, Union, Elm, Pine, Maple, Main, Chestnut, Birch
Frequently asked questions
What ZIP codes are in Janesville, IA?
Janesville, Iowa has 1 ZIP code, ranging from 50647 to 50647. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Janesville, IA in?
Janesville is in Bremer county.
What are the latitude and longitude of Janesville, IA?
The approximate center of Janesville, Iowa is latitude 42.649, longitude -92.483. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Janesville, IA have?
Janesville has 1 ZIP code.
How many addresses are in Janesville, IA?
Janesville, Iowa has about 24,156 known street addresses in the sthan.io US address database.
What are the most common streets in Janesville, IA?
Some of the most common street names in Janesville are Winslow, Sycamore, Taylor, Union, Elm, Pine.
What cities are near Janesville, IA?
Cities near Janesville include Shell Rock (7 mi), Cedar Falls (8 mi), Denver (8 mi), Waverly (8 mi), New Hartford (9 mi).
Cities near Janesville
Shell Rock, IA (7 mi) Cedar Falls, IA (8 mi) Denver, IA (8 mi) Waverly, IA (8 mi) New Hartford, IA (9 mi) Readlyn, IA (13 mi) Clarksville, IA (14 mi) Stout, IA (14 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database