6 people found this useful.     It cost me $200 per month for just over 1 acre of land. My neighbors have 1 acre and they say it cost them about $150, my in-laws have just over 2 acres of land an … d they tell me it cost them almost $300 per month to water their lawn.1 person found this useful. people found this useful.     It cost me $200 per month for just over 1 acre of land. My neighbors have 1 acre and they say it cost them about $150, my in-laws have just over 2 acres of land an … d they tell me it cost them almost $300 per month to water their lawn.