| Name | Styles | Significance | Periods |
|---|
| Blackstone Canal Historic District | No Style Listed | engineering, transportation, historic - aboriginal, industry, commerce | 1850-1874, 1825-1849, 1900-1924, 1925-1949, 1875-1899 |
Ethan Allen House and Gun Shop (37 Waterville St.) | Greek Revival | architecture, industry | 1925-1949, 1825-1849, 1900-1924, 1875-1899, 1850-1874 |
Farnumsville Historic District (Roughly bounded by Providence Rd., Cross, Main, Harding and Depot Sts. and Maple Ave.) | Late 19th And 20th Century Revivals | architecture, community planning and development, industry | 1800-1824, 1850-1874, 1875-1899, 1825-1849, 1900-1924, 1925-1949 |
Fisherville Historic District (Roughly bounded by Main, Elmwood, Ferry and Sampson Sts.) | Late 19th And 20th Century Revivals | architecture, industry, community planning and development | 1800-1824, 1850-1874, 1925-1949, 1900-1924, 1875-1899, 1825-1849 |
George Clapp House (44 North St.) | Greek Revival | architecture, community planning and development | 1850-1874, 1825-1849, 1900-1924, 1875-1899 |
Grafton Common Historic District (Roughly Worcester, Oak, Millbury, Church, South, Upton, and North Sts.) | Federal, Greek Revival, Late Victorian | community planning and development, architecture | 1900-1924, 1700-1749, 1900-1750 AD, 1925-1949 |
Grafton Inn (25 Central Sq.) | Federal | architecture, transportation, commerce | 1800-1824 |
Grafton State Hospital (Jct. of Westborough Rd. and Green St.) | Bungalow, Craftsman, Colonial Revival | social history, architecture, health, medicine | 1925-1949, 1900-1924 |