Irish Hills
A belt of rolling glacial moraine in southeastern Jackson and northwestern Lenawee counties, with more than 50 kettle lakes strung along US-12, including Devils Lake, Wamplers Lake, and Sand Lake. The area takes its name from Irish immigrants who settled here in the 1830s and 1840s, and today centers on Hayes State Park, small-lake boating and fishing, and Michigan International Speedway.
| Lake | County | Grade | Clarity | Depth | Fish |
|---|---|---|---|---|---|
| Farewell Lake West Basin; Hanover Township | Jackson | A | 11.8 ft | - | 18 |
| Clear Lake East Basin; Waterloo Township | Jackson | A | 10 ft | - | 17 |
| Sand Lake Central Basin; Cambridge Township | Lenawee | A | 13.5 ft | - | 6 |
| Devils Lake Central Basin North | Lenawee | A | 10.8 ft | - | 3 |
| Round Lake Central Basin | Lenawee | A | 12 ft | - | 25 |
| Posey Lake Central Basin; Hudson Township | Lenawee | B | 5 ft | - | 7 |
| Farewell Lake | Jackson | NR | 11.5 ft | - | 18 |
| Sand Lake | Lenawee | NR | 13.3 ft | - | 8 |
| Brown Lake Central Basin; Summit Township | Jackson | NR | 7.5 ft | - | 1 |
| Clear Lake | Jackson | NR | 10 ft | - | 16 |
| Brown Lake | Jackson | NR | 8 ft | - | 6 |
| Posey Lake | Lenawee | NR | 4.5 ft | - | 7 |
| Batteese Lake | Jackson | NR | 2.8 ft | - | 2 |
| Batteese Lake | Jackson | NR | 3 ft | - | 2 |
| Devils Lake | Lenawee | NR | 10.8 ft | - | 27 |
| Ackerson Lake; Napoleon Twp | Jackson | NR | 12 ft | - | 0 |
| Round Lake | Lenawee | NR | 12.5 ft | - | 23 |
| Cranberry Lake | Jackson | NR | - | - | 0 |
Top-Rated Lakes in Irish Hills
Jackson County · Grade A · 11.8 ft clarity
Jackson County · Grade A · 10 ft clarity
Lenawee County · Grade A · 13.5 ft clarity
Lenawee County · Grade A · 10.8 ft clarity
Lenawee County · Grade A · 12 ft clarity
Lenawee County · Grade B · 5 ft clarity
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Source: EPA National Aquatic Resource Surveys, 2026.