We found 22 public water systems that could serve the same population as Mason City Drive-in Theater (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Mason City Water Department | Mason City | 28,079 | 6 | 75 |
| Mason City Airport | Mason City | 183 | 0 | 0 |
| Lehigh Cement Company Llc | Mason City | 142 | 0 | 14 |
| The Rose Bowl | Mason City | 110 | 0 | 0 |
| Vibrations | Mason City | 100 | 0 | 0 |
| Four Oaks (mason City) | Mason City | 84 | 0 | 0 |
| Lime Creek Conservation Area | Mason City | 81 | 0 | 0 |
| Camp At The Woods | Mason City | 69 | 0 | 0 |
| Pine Creek Golf Course | Mason City | 55 | 0 | 0 |
| Wayne Feeds Division | Mason City | 52 | 0 | 0 |
| Willow Pointe | Mason City | 50 | 0 | 0 |
| ZIEGLER CAT (MASON CITY) | Mason City | 49 | 0 | 0 |
| Ashley Inn Motel | Mason City | 40 | 0 | 0 |
| Brakke Implement | Mason City | 40 | 0 | 0 |
| Troika Club | Mason City | 40 | 0 | 0 |
| Ball Breakers | Mason City | 39 | 0 | 0 |
| Mason City Red Power Inc | Mason City | 38 | 0 | 0 |
| Rayburn Court For Mobile Homes | Mason City | 36 | 0 | 0 |
| Linn Grove Park | Mason City | 27 | 0 | 0 |
| Hawkeye Motel & Worldwide | Mason City | 25 | 0 | 0 |
| United Sugars Corporation | Mason City | 25 | 0 | 0 |
| Golden Oval Eggs | Mason City | 25 | 0 | 0 |