This is a list of the National Register of Historic Places listings in Platte County, Wyoming.

It is intended to be a complete list of the properties and districts on the National Register of Historic Places in Platte County, Wyoming, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map.^[1]

There are 14 properties and districts listed on the National Register in the county, 3 of which are National Historic Landmarks. One previous listing has been removed from the Register.

          This National Park Service list is complete through NPS recent listings posted April 12, 2024.^[2]

Current listings

[3]	Name on the Register	Image	Date listed[4]	Location	City or town	Description
1	Chugwater Soda Fountain		June 21, 2022 (#100007867)	314 1st St. 41°45′24″N 104°49′17″W / 41.7567°N 104.8214°W / 41.7567; -104.8214 (Chugwater Soda Fountain)	Chugwater
2	Diamond Ranch	Upload image	September 28, 1984 (#84003696)	Northwest of Chugwater 41°44′45″N 105°03′15″W / 41.7458°N 105.0542°W / 41.7458; -105.0542 (Diamond Ranch)	Chugwater
3	EWZ Bridge over East Channel of Laramie River		February 22, 1985 (#85000431)	County Road CN8-204 42°02′41″N 105°08′51″W / 42.0447°N 105.1475°W / 42.0447; -105.1475 (EWZ Bridge over East Channel of Laramie River)	Wheatland	Replaced
4	Duncan Grant Ranch Rural Historic Landscape		February 27, 2013 (#13000047)	778 Sybille Creek Rd. 41°58′35″N 105°03′36″W / 41.9764°N 105.0601°W / 41.9764; -105.0601 (Duncan Grant Ranch Rural Historic Landscape)	Wheatland
5	Robert Grant Ranch	Upload image	September 7, 1995 (#95001073)	433 Richeau Rd. 41°50′55″N 104°56′54″W / 41.8486°N 104.9483°W / 41.8486; -104.9483 (Robert Grant Ranch)	Wheatland	Now in its fourth generation, the Grant Ranch provides pasture to grazing leaseholders. It was owned until his death in 2012 by the former Wyoming State Representative Robert Mills Grant.
6	Guernsey Lake Park	More images	August 26, 1980 (#80004051)	1 mi (1.6 km) northwest of Guernsey 42°17′15″N 104°45′32″W / 42.2875°N 104.7589°W / 42.2875; -104.7589 (Guernsey Lake Park)	Guernsey	Designated a National Historic Landmark District on September 25, 1997
7	Oregon Trail Ruts	More images	October 15, 1966 (#66000761)	Southern side of the North Platte River, .5 mi (0.80 km) south of Guernsey 42°15′15″N 104°44′47″W / 42.2542°N 104.7464°W / 42.2542; -104.7464 (Oregon Trail Ruts)	Guernsey
8	Patten Creek Site		September 11, 1989 (#89001204)	Address Restricted	Hartville
9	Platte County Courthouse		October 15, 2008 (#08001004)	900 9th St. 42°03′20″N 104°57′11″W / 42.0556°N 104.9531°W / 42.0556; -104.9531 (Platte County Courthouse)	Wheatland
10	Powars II Paleoindian Hematite Quarry		May 6, 2021 (#100006494)	Address Restricted	Sunrise vicinity
11	Register Cliff	More images	April 3, 1970 (#70000674)	Southeast of Guernsey on the North Platte River 42°14′54″N 104°42′37″W / 42.2482°N 104.7102°W / 42.2482; -104.7102 (Register Cliff)	Guernsey
12	Sunrise Mine Historic District		December 23, 2005 (#05000925)	Wyoming Highway 318 42°19′55″N 104°42′11″W / 42.3319°N 104.7031°W / 42.3319; -104.7031 (Sunrise Mine Historic District)	Hartville
13	Swan Land and Cattle Company Headquarters	More images	October 15, 1966 (#66000760)	Eastern side of Chugwater 41°44′54″N 104°49′05″W / 41.7483°N 104.8181°W / 41.7483; -104.8181 (Swan Land and Cattle Company Headquarters)	Chugwater
14	Wheatland Downtown Historic District		March 19, 2021 (#100006269)	9th St. from Walnut to Water Sts., and Gilchrist St. from 8th to 9th Sts. 42°03′16″N 104°57′12″W / 42.0544°N 104.9534°W / 42.0544; -104.9534 (Wheatland Downtown Historic District)	Wheatland

Former listing