Largest households in Idaho

Idaho counties and cities ranked by average household size.

This page ranks the counties and cities of Idaho by average household size — which have the largest average household size, according to the US Census Bureau's American Community Survey 5-year estimates.

Among counties, Madison County leads at 3.45.

Among cities & places, Letha leads at 6.58.

Counties

#	Name	Avg household size
1	Madison County	3.45
2	Camas County	3.41
3	Jefferson County	3.24
4	Valley County	3.15
5	Bingham County	3.03
6	Franklin County	3.01
7	Cassia County	3.00
8	Jerome County	3.00
9	Clark County	2.95
10	Fremont County	2.93
11	Power County	2.93
12	Bonneville County	2.89
13	Caribou County	2.89
14	Canyon County	2.87
15	Owyhee County	2.85
16	Gooding County	2.84
17	Lincoln County	2.84
18	Bear Lake County	2.81
19	Minidoka County	2.79
20	Payette County	2.74
21	Twin Falls County	2.67
22	Gem County	2.65
23	Teton County	2.64
24	Washington County	2.61
25	Boundary County	2.59
26	Adams County	2.58
27	Butte County	2.58
28	Bannock County	2.56
29	Elmore County	2.56
30	Kootenai County	2.54
31	Ada County	2.51
32	Idaho County	2.51
33	Bonner County	2.50
34	Benewah County	2.47
35	Blaine County	2.46
36	Oneida County	2.40
37	Nez Perce County	2.39
38	Lemhi County	2.38
39	Shoshone County	2.34
40	Lewis County	2.31
41	Clearwater County	2.28
42	Boise County	2.27
43	Latah County	2.22
44	Custer County	2.17

Cities & places

Top 100.

#	Name	Avg household size
1	Letha	6.58
2	Donnelly	6.35
3	Yellow Pine	5.68
4	Carey	4.89
5	De Smet	4.62
6	Rockford	4.42
7	Moore	3.94
8	Georgetown	3.91
9	Dietrich	3.88
10	Weston	3.76
11	Inkom	3.70
12	Fairfield	3.68
13	Malta	3.65
14	Oakley	3.65
15	Parker	3.59
16	Lapwai	3.57
17	Minidoka	3.57
18	Iona	3.54
19	Newdale	3.53
20	Aberdeen	3.49
21	Clifton	3.47
22	Tetonia	3.47
23	Elk City	3.46
24	Paris	3.45
25	Eden	3.39
26	Bellevue	3.38
27	Moreland	3.37
28	Lewisville	3.33
29	Tyhee	3.32
30	Grace	3.31
31	Rexburg	3.30
32	Riverside	3.29
33	Gannett	3.28
34	Mud Lake	3.27
35	Sugar City	3.25
36	Bloomington	3.21
37	Kimberly	3.19
38	Roberts	3.16
39	Notus	3.15
40	Hidden Springs	3.11
41	Lincoln	3.10
42	American Falls	3.09
43	Mountain Home AFB	3.06
44	Wilder	3.06
45	Cottonwood	3.05
46	Hope	3.04
47	McCammon	3.04
48	Hansen	3.03
49	Shoshone	3.03
50	Teton	3.02
51	Kuna	3.01
52	Jerome	3.00
53	Oxford	3.00
54	State Line	3.00
55	Caldwell	2.99
56	Ammon	2.98
57	Ashton	2.98
58	Ririe	2.98
59	Driggs	2.97
60	Groveland	2.97
61	Heyburn	2.97
62	Homedale	2.96
63	Moyie Springs	2.96
64	Dayton	2.95
65	Menan	2.95
66	St. Charles	2.95
67	Ucon	2.94
68	Bennington	2.93
69	Burley	2.93
70	Franklin	2.93
71	Basalt	2.92
72	Middleton	2.92
73	Acequia	2.90
74	Shelley	2.90
75	Silverton	2.90
76	St. Anthony	2.90
77	Ferdinand	2.89
78	Firth	2.89
79	Gooding	2.89
80	McCall	2.87
81	Wendell	2.86
82	Chubbuck	2.85
83	Midvale	2.85
84	Rathdrum	2.85
85	Rupert	2.84
86	Cascade	2.82
87	Hazelton	2.82
88	Star	2.82
89	Athol	2.81
90	Greenleaf	2.80
91	Oldtown	2.80
92	Melba	2.79
93	Smiths Ferry	2.79
94	Nampa	2.78
95	Rockland	2.78
96	Payette	2.77
97	Murtaugh	2.75
98	Victor	2.75
99	Filer	2.74
100	Nezperce	2.74

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Largest households in Idaho

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