# National Register of Historic Places listings in Lyon County, Iowa

This is a list of the National Register of Historic Places listings in Lyon County, Iowa.
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Lyon County, Iowa, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in a map.
There are 10 properties and districts listed on the National Register in the county, including one National Historic Landmark.
This National Park Service list is complete through NPS recent listings posted February 28, 2025.
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| | Name on the Register | Image | Date listed | Location | City or town | Description |
| 1 | Big Sioux Prehistoric Prairie Procurement System Archaeological District | Upload image | January 17, 1989 (#88001169) | Address Restricted | Klondike | |
| 2 | Blood Run Site | Blood Run Site More images | August 29, 1970 (#70000246) | On the Iowa/South Dakota border along the Big Sioux River 43°30′01″N 96°35′49″W﻿ / ﻿43.5004°N 96.5969°W﻿ / 43.5004; -96.5969﻿ (Blood Run Site) | Granite | |
| 3 | Broad View Ranch Historic District | Upload image | September 23, 1994 (#94001137) | 2572 Log Ave. 43°16′33″N 95°54′01″W﻿ / ﻿43.275833°N 95.900278°W﻿ / 43.275833; -95.900278﻿ (Broad View Ranch Historic District) | Sheldon | |
| 4 | Burlington, Cedar Rapids, and Northern Railroad-Rock Rapids Station, Railroad Track and Bridge | Burlington, Cedar Rapids, and Northern Railroad-Rock Rapids Station, Railroad Track and Bridge | November 7, 1976 (#76000783) | N. Story St. 43°26′01″N 96°09′59″W﻿ / ﻿43.433611°N 96.166389°W﻿ / 43.433611; -96.166389﻿ (Burlington, Cedar Rapids, and Northern Railroad-Rock Rapids Station, Railroad Track and Bridge) | Rock Rapids | |
| 5 | Duncan-Duitsman Farm Historic District | Upload image | September 23, 1994 (#94001138) | 4324 180th St. 43°23′33″N 95°56′04″W﻿ / ﻿43.3925°N 95.934444°W﻿ / 43.3925; -95.934444﻿ (Duncan-Duitsman Farm Historic District) | George | |
| 6 | First Methodist Church | First Methodist Church | June 23, 1978 (#78001244) | 302 S. Carroll St. 43°25′45″N 96°10′19″W﻿ / ﻿43.429167°N 96.171944°W﻿ / 43.429167; -96.171944﻿ (First Methodist Church) | Rock Rapids | |
| 7 | Klondike Bridge | Upload image | May 15, 1998 (#98000510) | 180th St. over the Big Sioux River 43°23′16″N 96°31′18″W﻿ / ﻿43.387778°N 96.521667°W﻿ / 43.387778; -96.521667﻿ (Klondike Bridge) | Larchwood | |
| 8 | Lyon County Courthouse | Lyon County Courthouse | October 1, 1979 (#79000913) | 3rd and Story Sts. 43°25′48″N 96°10′02″W﻿ / ﻿43.43°N 96.167222°W﻿ / 43.43; -96.167222﻿ (Lyon County Courthouse) | Rock Rapids | |
| 9 | Melan Bridge | Melan Bridge More images | October 18, 1974 (#74000797) | East of Rock Rapids in Emma Sater Park 43°25′49″N 96°09′19″W﻿ / ﻿43.430278°N 96.155278°W﻿ / 43.430278; -96.155278﻿ (Melan Bridge) | Rock Rapids | |
| 10 | Charles B. Reynolds Round Barn | Upload image | July 7, 1999 (#99000737) | 2382 Harrison Ave. 43°18′10″N 96°09′21″W﻿ / ﻿43.302778°N 96.155833°W﻿ / 43.302778; -96.155833﻿ (Charles B. Reynolds Round Barn) | Doon | Demolished |

## Former listings

| | Name on the Register | Image | Date listed | Date removed | Location | City or town | Description |
| 1 | Kruger Mill | Upload image | November 3, 1975 (#75000696) | December 15, 2003 | SW of Larchwood on Sioux River | Larchwood vicinity | |