Jaroso is an unincorporated community and a U.S. Post Office located in Costilla County, Colorado, United States. The Jaroso Post Office has the ZIP Code 81138.[2]
A post office called Joroso has been in operation since 1911.[3] Jaroso is a name derived from Spanish meaning "willows".[4]
Jaroso is located at 37°00′14″N 105°37′26″W / 37.00389°N 105.62389°W / 37.00389; -105.62389 (37.003924,-105.623760).
| post code | city | state | latitude | longitude |
|---|---|---|---|---|
| 81138 | Jaroso | CO | 37.0028 | -105.62418 |