| Feature Name | County | Type | Latitude | Longitude | Altitiude | USGS 7.5 Map |
| Amedee AFB | Lassen | pop place | 40.2661111111 | -120.1525 | Spencer Creek | |
| Avila Place | Lassen | pop place | 41.0430555556 | -120.866666667 | Lane Reservoir | |
| Belfast | Lassen | pop place | 40.4436111111 | -120.450555556 | Litchfield | |
| Bieber | Lassen | pop place | 41.1213888889 | -121.143055556 | Bieber | |
| Big Valley City | Lassen | pop place | 41.0958333333 | -121.181944444 | Bieber | |
| Brockman | Lassen | pop place | 40.9638888889 | -120.498055556 | McDonald Peak | |
| Buntingville | Lassen | pop place | 40.2858333333 | -120.483888889 | Standish | |
| Calneva | Lassen | pop place | 40.1527777778 | -120.007777778 | Calneva Lake | |
| Chalk Crossing | Lassen | pop place | 41.1213888889 | -121.143055556 | Bieber | |
| Chalk Ford | Lassen | pop place | 41.1213888889 | -121.143055556 | Bieber | |
| Chats (historical) | Lassen | pop place | 39.7741666667 | -120.072222222 | Beckwourth Pass | |
| Clear Creek | Lassen | pop place | 40.2980555556 | -121.0475 | Westwood West | |
| Coppervale | Lassen | pop place | 40.3466666667 | -120.903888889 | Westwood East | |
| Crest | Lassen | pop place | 40.7247222222 | -120.369166667 | Snowstorm Mountain | |
| Dan Ryan Place | Lassen | pop place | 41.1497222222 | -120.816111111 | Ambrose Valley | |
| Dixie | Lassen | pop place | 40.9441666667 | -121.170833333 | Little Valley | |
| Doyle | Lassen | pop place | 40.0280555556 | -120.102777778 | Doyle | |
| Edgemont (historical) | Lassen | pop place | 40.3116666667 | -120.443888889 | Standish | |
| Evans Place | Lassen | pop place | 41.06 | -120.228611111 | Boot Lake | |
| Goumaz (historical) | Lassen | pop place | 40.4138888889 | -120.861388889 | Roop Mountain | |
| Hallelujah Junction | Lassen | pop place | 39.7755555556 | -120.038333333 | Beckwourth Pass | |
| Halls Flat | Lassen | pop place | 40.7561111111 | -121.258055556 | Jellico | |
| Hayden Hill | Lassen | pop place | 40.9955555556 | -120.886111111 | Silva Flat Reservoir | |
| Herlong | Lassen | pop place | 40.1436111111 | -120.133611111 | Herlong | |
| Herlong Junction | Lassen | pop place | 40.1247222222 | -120.245555556 | McKesick Peak | |
| Horse Lake | Lassen | pop place | 40.6741666667 | -120.403055556 | West of Snowstorm Mountain | |
| Hot Springs | Lassen | pop place | 41.1463888889 | -121.0375 | Big Swamp | |
| Janesville | Lassen | pop place | 40.2966666667 | -120.523055556 | Janesville | |
| Jellico | Lassen | pop place | 40.845 | -121.291666667 | Jellico | |
| Johnstonville | Lassen | pop place | 40.3844444444 | -120.586388889 | Johnstonville | |
| Karlo | Lassen | pop place | 40.5505555556 | -120.314444444 | Karlo | |
| Lasco | Lassen | pop place | 40.4225 | -120.971666667 | Pegleg Mountain | |
| Leavitt | Lassen | pop place | 40.3961111111 | -120.525 | Johnstonville | |
| Leonard | Lassen | pop place | 41.1347222222 | -121.029722222 | Big Swamp | |
| Litchfield | Lassen | pop place | 40.3827777778 | -120.386111111 | Litchfield | |
| Little Valley | Lassen | pop place | 40.8944444444 | -121.176388889 | Little Valley | |
| Madeline | Lassen | pop place | 41.0511111111 | -120.474444444 | Madeline | |
| Milford | Lassen | pop place | 40.1713888889 | -120.371388889 | Milford | |
| Moran | Lassen | pop place | 40.9016666667 | -120.489166667 | McDonald Peak | |
| New Town | Lassen | pop place | 41.0958333333 | -121.181944444 | Bieber | |
| Norvell | Lassen | pop place | 40.4863888889 | -121.004444444 | Swain Mountain | |
| Nubieber | Lassen | pop place | 41.0958333333 | -121.181944444 | Bieber | |
| Old Town (historical) | Lassen | pop place | 40.3041666667 | -120.989722222 | Westwood East | |
| Omira | Lassen | pop place | 39.9669444444 | -120.076388889 | Constantia | |
| Patton Village | Lassen | pop place | 40.1411111111 | -120.153888889 | Herlong | |
| Pine Town | Lassen | pop place | 40.3041666667 | -120.989722222 | Westwood East | |
| Pinnio | Lassen | pop place | 41.0741666667 | -120.468333333 | Madeline | |
| Plumas | Lassen | pop place | 39.7566666667 | -120.082222222 | Beckwourth Pass | |
| Pumpkin Center | Lassen | pop place | 41.11 | -121.105555556 | Hog Valley | |
| Ravendale | Lassen | pop place | 40.7986111111 | -120.364166667 | Ravendale | |
| Reno Junction | Lassen | pop place | 39.7919444444 | -120.098888889 | Beckwourth Pass | |
| Robbers Creek | Lassen | pop place | 40.3702777778 | -121.003888889 | Westwood West | |
| Rooptown (-1857) | Lassen | pop place | 40.4163888889 | -120.651944444 | Susanville | |
| Sage Hen | Lassen | pop place | 41.1108333333 | -120.476944444 | Madeline | |
| Scotts | Lassen | pop place | 39.8463888889 | -120.091388889 | Beckwourth Pass | |
| Scotty Place | Lassen | pop place | 41.1241666667 | -120.872777778 | Lane Reservoir | |
| Sheepshead | Lassen | pop place | 40.8555555556 | -120.823333333 | Sheepshead | |
| Shumway | Lassen | pop place | 40.6969444444 | -120.49 | West of Snowstorm Mountain | |
| Spalding | Lassen | pop place | 40.6530555556 | -120.770833333 | Spalding Tract | |
| Spalding Tract | Lassen | pop place | 40.6530555556 | -120.770833333 | Spalding Tract | |
| Stacy | Lassen | pop place | 40.23 | -120.020277778 | Calneva Lake | |
| Standish | Lassen | pop place | 40.3652777778 | -120.421111111 | Standish | |
| Stones Landing | Lassen | pop place | 40.7125 | -120.722222222 | Troxel Point | |
| Susanville (1857-) | Lassen | pop place | 40.4163888889 | -120.651944444 | Susanville | |
| Terminal | Lassen | pop place | 40.8658333333 | -120.459166667 | Termo | |
| Termo | Lassen | pop place | 40.8658333333 | -120.459166667 | Termo | |
| The Crossing | Lassen | pop place | 40.4863888889 | -120.473055556 | Litchfield | |
| Toadtown | Lassen | pop place | 40.3844444444 | -120.586388889 | Johnstonville | |
| Viewland | Lassen | pop place | 40.4302777778 | -120.279166667 | Shaffer Mountain | |
| Wendel | Lassen | pop place | 40.3483333333 | -120.2325 | Wendel | |
| Westwood | Lassen | pop place | 40.3061111111 | -121.004722222 | Westwood West | |
| Westwood Junction | Lassen | pop place | 40.4319444444 | -120.945555556 | Pegleg Mountain |
| Lassen County Pop place(s)
|
|