| General Information | |
|---|---|
| Country | United States |
| State/Province | Iowa |
| Major City | Sioux City |
| Time Zone | Central (UTC-06:00) |
| Current Local Time | 08:20 |
| Prefix | County | Primary City |
|---|---|---|
| 712-200 | Buena Vista | Alta |
| 712-202 | Woodbury | Sioux City |
| 712-203 | Woodbury | Sioux City |
| 712-204 | Woodbury | Sioux City |
| 712-207 | Shelby | Shelby |
| 712-208 | Monona | Mapleton |
| 712-209 | Emmet | Estherville |
| 712-210 | Carroll | Glidden |
| 712-212 | Woodbury | Sioux City |
| 712-213 | Buena Vista | Storm Lake |
| 712-215 | Page | Shenandoah |
| 712-216 | Harrison | Logan |
| 712-219 | Monona | Onawa |
| 712-220 | Carroll | Carroll |
| 712-221 | Cherokee | Cherokee |
| 712-222 | Woodbury | Sioux City |
| 712-223 | Woodbury | Sioux City |
| 712-224 | Woodbury | Sioux City |
| 712-225 | Cherokee | Cherokee |
| 712-226 | Woodbury | Sioux City |
| 712-227 | Pottawattamie | Crescent |
| 712-228 | Woodbury | Sergeant Bluff |
| 712-229 | Cherokee | Cherokee |
| 712-230 | Sioux | Hospers |
| 712-231 | Sioux | Hospers |
| 712-232 | Clay | Spencer |
| 712-233 | Woodbury | Sioux City |
| 712-234 | Woodbury | Sioux City |
| 712-235 | Shelby | Harlan |
| 712-236 | Shelby | Harlan |
| 712-237 | Woodbury | Sergeant Bluff |
| 712-238 | Woodbury | Sioux City |
| 712-239 | Woodbury | Sioux City |
| 712-240 | Clay | Greenville |
| 712-242 | Pottawattamie | Council Bluffs |
| 712-243 | Cass | Atlantic |
| 712-244 | Woodbury | Sioux City |
| 712-246 | Page | Shenandoah |
| 712-247 | Woodbury | Sergeant Bluff |
| 712-248 | Pottawattamie | Carter Lake |
| 712-249 | Cass | Atlantic |
| 712-250 | Cass | Atlantic |
| 712-251 | Woodbury | Sioux City |
| 712-252 | Woodbury | Sioux City |
| 712-253 | Woodbury | Sioux City |
| 712-254 | Cass | Atlantic |
| 712-255 | Woodbury | Sioux City |
| 712-256 | Pottawattamie | Council Bluffs |
| 712-257 | Woodbury | Sergeant Bluff |
| 712-258 | Woodbury | Sioux City |