Appendix C of Portrait Of a Hill Town by Ronald and Grace Jager, Washington NH, 1977;
In 1934 the State Planning Board issued an inventory entitled ``Area of Water Bodies in the State of New Hampshire.'' Most of the following data on elevation and acreage of Washington Ponds are taken from this inventory. The answer to the question, ``How many ponds does Washington Have?'', depends on whether private ponds, mill ponds, ponds partly to mostly outside the town are counter. In Let Me Show You New Hampshire, E.S. Bowles remarks that Washington has more ponds than any other New Hampshire town except Pittsburg which is six times as large (p. 95). The following list includes what were once mill ponds, and also all ponds partly or wholly within the town (the acreage given is the acreage within Washington), and excludes private manmade ponds, though some of them are larger than Barney Pond. The order is from the largest to the smallest, and the total acreage is 1478.71.
| elevation | acreage | |
|---|---|---|
| Ashuelot Pond* | 1445 | 428.52 |
| Island Pond | 1407 | 202.20 |
| Highland Lake (part) | 1295 | 191.69 |
| Millen Pond | 1582 | 148.41 |
| Half Moon Pond | 1432 | 129.86 |
| May Pond* | 1603 | 102.65 |
| North Pond | 1645 | 53.18 |
| Butterfield Pond | 1603 | 30.00 (approx) |
| Smith Pond | 1075 | 26.59 |
| Ayers Pond | 1750 | 24.73 |
| Frog Pond | 1610 | 23.50 |
| Mill Pond (Pillsbury) | 1639 | 23.00 (approx) |
| Barrett Pond | 1570 | 16.70 |
| Fletcher Pond | 1632 | 13.60 |
| Bacon Pond | 1650 | 12.37 |
| Barden Pond | 1690 | 9.28 |
| Russell Pond | 1470 | 8.66 |
| Hedgehog Pond | 1670 | 6.80 |
| Freezeland Pond | 1410 | 6.18 |
| Philbrick Pond | 1390 | 6.18 |
| Vickery Pond | 1610 | 5.57 |
| Mill Pond (East Wash.) | 930 | 3.09 |
| Bear Pond | 1720 | 2.47 |
| Long Pond (part) | 1548 | 1.24 |
| Mud Pond (part) | 1250 | 1.24 |
| Barney Pond | 1420? | 1.00 |
* DHHS advises everyone to avoid eating all bass and pickerel from May Pond and Ashuelot Pond due to mercury levels