Every style the index knows, as a tree: a family counts every style beneath it. Each has a page with its definition and period; a style is ranked once at least one city has five listings in it, and until then its page lists the cities that have some. Periods are the typical United States range.
- Colonial 1600–1780 67 cities ranked
- Georgian 1700–1780 41 cities ranked
- Dutch Colonial 1625–1840 1 city ranked
- French Colonial 1700–1830 2 cities ranked
- Spanish Colonial 1600–1850 1 city ranked
- Postmedieval English 1600–1700 3 cities ranked
- Early Republic 1780–1830 96 cities ranked
- Federal 1780–1820 88 cities ranked
- Early Classical Revival 1770–1830 1 city ranked
- Mid-19th Century 1830–1870 351 cities ranked
- Greek Revival 1825–1860 187 cities ranked
- Gothic Revival 1840–1880 101 cities ranked
- Carpenter Gothic 1840–1880 1 city ranked
- Italian Villa 1840–1870 7 cities ranked
- Octagon Mode 1850–1870 no city has 5 yet; 49 have some
- Exotic Revival 1835–1890 5 cities ranked
- Egyptian Revival 1830–1860 no city has 5 yet; 55 have some
- Moorish Revival 1850–1900 4 cities ranked
- Early Romanesque Revival 1840–1860 2 cities ranked
- Late Victorian 1860–1900 711 cities ranked
- Italianate 1840–1885 232 cities ranked
- Second Empire 1855–1885 51 cities ranked
- Stick/Eastlake 1860–1890 36 cities ranked
- Queen Anne 1880–1910 246 cities ranked
- Free Classic 1890–1910 2 cities ranked
- Folk Victorian 1870–1910 2 cities ranked
- Shingle Style 1880–1900 28 cities ranked
- Romanesque Revival 1840–1900 131 cities ranked
- Richardsonian Romanesque 1880–1900 21 cities ranked
- High Victorian Gothic 1860–1890 40 cities ranked
- Renaissance Revival (Victorian) 1840–1890 105 cities ranked
- Late 19th and 20th Century Revivals 1880–1955 772 cities ranked
- Colonial Revival 1880–1955 280 cities ranked
- Dutch Colonial Revival 1895–1930 4 cities ranked
- Georgian Revival 1895–1955 35 cities ranked
- Cape Cod Revival 1920–1955 1 city ranked
- Classical Revival 1895–1950 252 cities ranked
- Beaux-Arts 1885–1930 52 cities ranked
- Italian Renaissance Revival 1890–1935 46 cities ranked
- Late Gothic Revival 1900–1940 57 cities ranked
- Collegiate Gothic 1890–1940 4 cities ranked
- Tudor Revival 1890–1940 110 cities ranked
- Spanish and Mediterranean Revivals 1890–1940 127 cities ranked
- Mission Revival 1890–1920 79 cities ranked
- Spanish Colonial Revival 1915–1940 56 cities ranked
- Mediterranean Revival 1915–1940 29 cities ranked
- Monterey 1925–1955 2 cities ranked
- Pueblo Revival 1910–1990 9 cities ranked
- Chateauesque 1880–1910 2 cities ranked
- Byzantine Revival 1890–1930 1 city ranked
- Art Nouveau 1890–1915 1 city ranked
- French Eclectic 1915–1945 4 cities ranked
- Colonial Revival 1880–1955 280 cities ranked
- Late 19th and Early 20th Century American Movements 1880–1930 334 cities ranked
- Arts and Crafts 1890–1930 239 cities ranked
- Craftsman 1905–1930 190 cities ranked
- Prairie School 1900–1920 39 cities ranked
- American Foursquare 1895–1930 23 cities ranked
- Chicago School 1880–1910 97 cities ranked
- Commercial Style 1880–1930 72 cities ranked
- Skyscraper 1885–1930 7 cities ranked
- Sullivanesque 1890–1920 1 city ranked
- Arts and Crafts 1890–1930 239 cities ranked
- Modern Movement 1920–2000 198 cities ranked
- Art Deco 1920–1940 72 cities ranked
- Moderne 1930–1950 59 cities ranked
- Streamline Moderne 1930–1945 3 cities ranked
- PWA Moderne 1933–1944 1 city ranked
- International Style 1925–1975 29 cities ranked
- Minimal Traditional 1935–1950 12 cities ranked
- Usonian 1936–1959 1 city ranked
- Mid-Century Modern 1945–1975 36 cities ranked
- Contemporary 1945–1990 1 city ranked
- Ranch 1935–1975 16 cities ranked
- Split-Level 1955–1975 no city has 5 yet; 22 have some
- Googie 1945–1972 no city has 5 yet; 11 have some
- New Formalism 1955–1975 no city has 5 yet; 45 have some
- Brutalism 1950–1980 no city has 5 yet; 36 have some
- Expressionist Modern 1950–1975 no city has 5 yet; 15 have some
- Shed 1960–1985 no ranked city has one yet
- Postmodern 1965–1995 no city has 5 yet; 15 have some
- Other 89 cities ranked
- Vernacular 77 cities ranked
- I-House 1800–1900 2 cities ranked
- Hall-and-Parlor 1700–1900 1 city ranked
- Gabled Ell 1850–1910 1 city ranked
- Shotgun 1860–1930 4 cities ranked
- Log 1700–1900 no city has 5 yet; 62 have some
- National Park Service Rustic 1916–1942 2 cities ranked
- Vernacular 77 cities ranked