Wyoming emergency room wait times
ER wait times › Wyoming
Across 23 Wyoming hospitals that report the measure, the median emergency department visit lasts 2 hr — 30 min shorter than the national median of 2 hr 30 min. The shortest is North Big Horn Hospital District at 58 min.
Medians over a full year, for patients treated and discharged rather than admitted. Busy hospitals treat sicker patients, so a longer wait is not by itself a mark against a hospital. How this measure works.
| # | Hospital | City | Median wait | Left before seen | ER volume | CMS rating |
|---|---|---|---|---|---|---|
| 1 | North Big Horn Hospital District | Lovell | 58 min | 0% | low | 4/5 |
| 2 | South Big Horn County Critical Access Hospital | Basin | 1 hr 20 min | 0% | low | — |
| 3 | Powell Valley Hospital | Powell | 1 hr 23 min | 0% | low | 4/5 |
| 4 | Memorial Hospital of Carbon County | Rawlins | 1 hr 43 min | 0% | low | — |
| 5 | St Johns Medical Center | Jackson | 1 hr 49 min | 0% | low | 5/5 |
| 6 | Evanston Regional Hospital | Evanston | 1 hr 50 min | 0% | low | — |
| 7 | South Lincoln Medical Center - CAH | Kemmerer | 1 hr 51 min | 0% | low | — |
| 8 | Star Valley Medical Center | Afton | 1 hr 51 min | — | — | — |
| 9 | Sheridan Memorial Hospital | Sheridan | 1 hr 54 min | 0% | low | 3/5 |
| 10 | Memorial Hospital of Converse County | Douglas | 1 hr 54 min | 1% | low | 4/5 |
| 11 | Washakie Medical Center | Worland | 2 hr | 0% | low | 4/5 |
| 12 | Community Hospital | Torrington | 2 hr | 0% | low | 2/5 |
| 13 | Platte County Memorial Hospital | Wheatland | 2 hr 3 min | 1% | low | 4/5 |
| 14 | Crook County Medical Services Distrct | Sundance | 2 hr 10 min | — | — | — |
| 15 | West Park Hospital District | Cody | 2 hr 18 min | — | — | 3/5 |
| 16 | Ivinson Memorial Hospital | Laramie | 2 hr 22 min | 0% | low | 3/5 |
| 17 | Ivinson Memorial Hospital | Laramie | 2 hr 22 min | 0% | low | 3/5 |
| 18 | Riverton Memorial Hospital | Riverton | 2 hr 25 min | 2% | low | 2/5 |
| 19 | Hot Springs County Memorial Hospital | Thermopolis | 2 hr 28 min | 0% | low | 3/5 |
| 20 | Memorial Hospital Sweetwater County | Rock Springs | 2 hr 30 min | 1% | low | — |
| 21 | Campbell County Memorial Hospital | Gillette | 3 hr | 1% | medium | 3/5 |
| 22 | Wyoming Medical Center | Casper | 3 hr 10 min | 2% | medium | 2/5 |
| 23 | Cheyenne Regional Medical Center | Cheyenne | 3 hr 11 min | 1% | medium | 3/5 |
Source: CMS measure OP_18b, published July 2026. Hospitals with too few cases to report are not listed here; they still have a page in the Wyoming directory. Not affiliated with CMS. For a medical emergency, call 911.