Built in the 1800s
Thomas Jefferson took office in 1801 after the government moved to Washington. The Louisiana Purchase of 1803 doubled the size of the country and Lewis and Clark crossed it between 1804 and 1806. The Embargo Act of 1807 shut down much of the shipping trade in the northern ports.
289 places on the National Register have a construction year in the 1800s on record. They stand in 30 states and territories. Of those, 28 are National Historic Landmarks.
Construction years come from Wikidata, matched on National Register reference number. Only plain four-digit years are counted, so a place recorded as circa or as a range is left out. Data refreshed November 02, 2026.
By state
Longest-lived styles of the decade
| Style | In the 1800s | Dated examples, all decades | Years in use |
|---|---|---|---|
| Greek Revival | 25 | 1334 | 1660 to 2010 |
| Georgian | 15 | 264 | 1645 to 1986 |
| Neoclassical | 2 | 1199 | 1680 to 2016 |
| Federal | 122 | 751 | 1674 to 1996 |
| Vernacular | 3 | 191 | 1662 to 1984 |
| Renaissance Revival | 3 | 558 | 1695 to 2015 |
| Gothic Revival | 3 | 807 | 1698 to 2017 |
| Colonial | 3 | 136 | 1641 to 1956 |
Style labels come from Wikidata. A style is ranked by the span between the earliest and latest dated listing that carries it, across the whole register, and only styles with two or more listings in this decade are shown. Data refreshed November 02, 2026.
Places with full records
The other 261 listings from this decade are on the state pages above and on their county pages.