National Register Of Historic Places Listings In Iowa

Contents

1. Overview
2. Etymology
3. Cultural Impact

This is a list of properties and historic districts in Iowa that are listed on the National Register of Historic Places . The state boasts an impressive number of listings, with properties found in all of Iowa’s 99 counties , accumulating to a total exceeding 2,300 entries. It’s a testament to the state’s rich and varied past, a tapestry woven from the lives and endeavors of those who came before.

Contents: Counties in Iowa

The following is a comprehensive, albeit sometimes tedious, compilation of Iowa’s counties, each with its own unique narrative etched into the landscape. Clicking on a county name will lead you to a more detailed exploration of its historical treasures. Italicized entries denote links to separate pages for more in-depth information.

This exhaustive list is kept current by the National Park Service , with updates posted as of December 5, 2025. It’s a living document, reflecting the ongoing recognition of Iowa’s significant past.

Current Listings by County

The following table provides an approximate count of the current listings within each county. These figures are derived from the National Register Information Database as of April 24, 2008, and subsequent weekly updates. It’s crucial to note that these numbers are dynamic, with additions and occasional removals occurring regularly. Therefore, these counts serve as a general indication rather than an official, definitive tally. Furthermore, the numbers presented here exclude modifications to existing listings, such as boundary increases or decreases, which are assigned separate reference numbers. For precise figures, one should consult the individual county list-articles.

Notable examples that grace these listings include the Phil Hoffman House in Mahaska County, the serpentine Snake Alley in Des Moines County, and the Lock and Dam No. 14 Historic District in Scott County. The striking Grotto of the Redemption in Palo Alto County and the architecturally significant Merchants’ National Bank in Poweshiek County, designed by the renowned Louis Sullivan, are also highlighted. Other notable sites include the Howes Building in Clinton County and the Fourth Street Historic District in Woodbury County.

County	# of Sites
1 Adair	10
2 Adams	4
3 Allamakee	22
4 Appanoose	13
5 Audubon	15
6 Benton	16
7 Black Hawk	50
8 Boone	17
9 Bremer	12
10 Buchanan	20
11 Buena Vista	10
12 Butler	7
13 Calhoun	13
14 Carroll	18
15 Cass	11
16 Cedar	18
17 Cerro Gordo	47
18 Cherokee	12
19 Chickasaw	3
20 Clarke	8
21 Clay	9
22 Clayton	54
23 Clinton	31
24 Crawford	13
25 Dallas	18
26 Davis	12
27 Decatur	7
28 Delaware	14
29 Des Moines	36
30 Dickinson	12
31 Dubuque	85
32 Emmet	3
33 Fayette	29
34 Floyd	20
35 Franklin	12
36 Fremont	9
37 Greene	17
38 Grundy	3
39 Guthrie	8
40 Hamilton	8
41 Hancock	9
42 Hardin	35
43 Harrison	13
44 Henry	53
45 Howard	7
46 Humboldt	6
47 Ida	5
48 Iowa	11
49 Jackson	76
50 Jasper	16
51 Jefferson	29
52 Johnson	95
53 Jones	29
54 Keokuk	10
55 Kossuth	6
56 Lee	48
57 Linn	125
58 Louisa	10
59 Lucas	16
60 Lyon	10
61 Madison	54
62 Mahaska	49
63 Marion	29
64 Marshall	18
65 Mills	6
66 Mitchell	11
67 Monona	11
68 Monroe	11
69 Montgomery	19
70 Muscatine	40
71 O’Brien	3
72 Osceola	1
73 Page	9
74 Palo Alto	4
75 Plymouth	11
76 Pocahontas	3
77.1 Polk: Des Moines	190
77.2 Polk: Other	15
77.3 Polk: Total	205
78 Pottawattamie	41
79 Poweshiek	25
80 Ringgold	5
81 Sac	13
82.1 Scott: Davenport: Downtown	57
82.2 Scott: Davenport: East	91
82.3 Scott: Davenport: West	110
82.4 Scott: Davenport: Duplicates	(2) [5]
82.5 Scott: Other	31
82.6 Scott: Total	287
83 Shelby	13
84 Sioux	4
85 Story	37
86 Tama	13
87 Taylor	7
88 Union	6
89 Van Buren	20
90 Wapello	31
91 Warren	11
92 Washington	19
93 Wayne	4
94 Webster	15
95 Winnebago	3
96 Winneshiek	34
97 Woodbury	62
98 Worth	6
99 Wright	8
(duplicates)	(4) [6]
Total:	2,478

Adair County

Main article: National Register of Historic Places listings in Adair County, Iowa

Adams County

Main article: National Register of Historic Places listings in Adams County, Iowa

| Name on the Register | Image