Worst ZIP Codes for Homebuyers in Idaho — 2026

Out of 324 ZIP codes with data in Idaho, these are the highest-ranked areas for purchase risk. See also: National Worst ZIP Codes for Homebuyers — Hidden Risk Factors | All Idaho Rankings

Statistic	Value
ZIP codes ranked	324
Highest value	60/100
Median value	36/100
State	Idaho

Top 100 Worst ZIP Codes

Rank	ZIP Code	City	State	Purchase Risk	Safety Score
1	83546	Pierce	ID	60/100	41/100
2	83467	Salmon	ID	57/100	52/100
3	83874	Murray	ID	57/100	59/100
4	83525	Elk City	ID	56/100	38/100
5	83535	Juliaetta	ID	56/100	12/100
6	83520	Ahsahka	ID	55/100	62/100
7	83876	Worley	ID	55/100	59/100
8	83354	Sun Valley	ID	53/100	65/100
9	83438	Parker	ID	53/100	65/100
10	83633	King Hill	ID	53/100	33/100
11	83211	American Falls	ID	52/100	55/100
12	83701	Boise	ID	52/100	72/100
13	83311	Albion	ID	51/100	81/100
14	83353	Sun Valley	ID	51/100	64/100
15	83623	Glenns Ferry	ID	51/100	56/100
16	83346	Oakley	ID	50/100	78/100
17	83677	Yellow Pine	ID	50/100	52/100
18	83855	Potlatch	ID	50/100	69/100
19	83624	Grand View	ID	49/100	79/100
20	83707	Boise	ID	49/100	72/100
21	83708	Boise	ID	49/100	72/100
22	83711	Boise	ID	49/100	72/100
23	83715	Boise	ID	49/100	72/100
24	83717	Boise	ID	49/100	72/100
25	83719	Boise	ID	49/100	72/100
26	83720	Boise	ID	49/100	72/100
27	83721	Boise	ID	49/100	72/100
28	83722	Boise	ID	49/100	72/100
29	83724	Boise	ID	49/100	72/100
30	83725	Boise	ID	49/100	72/100
31	83726	Boise	ID	49/100	72/100
32	83727	Boise	ID	49/100	72/100
33	83728	Boise	ID	49/100	72/100
34	83729	Boise	ID	49/100	72/100
35	83730	Boise	ID	49/100	72/100
36	83731	Boise	ID	49/100	72/100
37	83732	Boise	ID	49/100	72/100
38	83735	Boise	ID	49/100	72/100
39	83756	Boise	ID	49/100	72/100
40	83757	Boise	ID	49/100	72/100
41	83799	Boise	ID	49/100	72/100
42	83213	Arco	ID	48/100	65/100
43	83303	Twin Falls	ID	48/100	72/100
44	83344	Murtaugh	ID	48/100	55/100
45	83403	Idaho Falls	ID	48/100	71/100
46	83405	Idaho Falls	ID	48/100	71/100
47	83415	Idaho Falls	ID	48/100	71/100
48	83655	New Plymouth	ID	48/100	67/100
49	83702	Boise	ID	48/100	69/100
50	83839	Kingston	ID	48/100	63/100
51	83870	Tensed	ID	48/100	65/100
52	83214	Arimo	ID	47/100	59/100
53	83548	Reubens	ID	47/100	94/100
54	83631	Idaho City	ID	47/100	64/100
55	83705	Boise	ID	47/100	72/100
56	83810	Cataldo	ID	47/100	63/100
57	83340	Ketchum	ID	46/100	44/100
58	83704	Boise	ID	46/100	72/100
59	83844	Moscow	ID	46/100	65/100
60	83215	Atomic City	ID	45/100	82/100
61	83237	Franklin	ID	45/100	81/100
62	83271	Rockland	ID	45/100	81/100
63	83328	Filer	ID	45/100	81/100
64	83334	Hansen	ID	45/100	82/100
65	83454	Ucon	ID	45/100	82/100
66	83544	Orofino	ID	45/100	52/100
67	83619	Fruitland	ID	45/100	58/100
68	83638	Mccall	ID	45/100	58/100
69	83647	Mountain Home	ID	45/100	65/100
70	83712	Boise	ID	45/100	74/100
71	83843	Moscow	ID	45/100	64/100
72	83263	Preston	ID	44/100	81/100
73	83348	Picabo	ID	44/100	62/100
74	83402	Idaho Falls	ID	44/100	73/100
75	83441	Rexburg	ID	44/100	82/100
76	83460	Rexburg	ID	44/100	82/100
77	83834	Harvard	ID	44/100	41/100
78	83871	Troy	ID	44/100	65/100
79	83226	Challis	ID	43/100	51/100
80	83241	Grace	ID	43/100	82/100
81	83253	May	ID	43/100	53/100
82	83314	Bliss	ID	43/100	60/100
83	83316	Buhl	ID	43/100	77/100
84	83318	Burley	ID	43/100	77/100
85	83336	Heyburn	ID	43/100	78/100
86	83401	Idaho Falls	ID	43/100	73/100
87	83404	Idaho Falls	ID	43/100	73/100
88	83423	Dubois	ID	43/100	65/100
89	83526	Ferdinand	ID	43/100	64/100
90	83622	Garden Valley	ID	43/100	64/100
91	83639	Marsing	ID	43/100	79/100
92	83806	Bovill	ID	43/100	66/100
93	83864	Sandpoint	ID	43/100	64/100
94	83320	Carey	ID	42/100	64/100
95	83327	Fairfield	ID	42/100	61/100
96	83536	Kamiah	ID	42/100	59/100
97	83680	Meridian	ID	42/100	73/100
98	83706	Boise	ID	42/100	69/100
99	83808	Calder	ID	42/100	70/100
100	83837	Kellogg	ID	42/100	63/100

Methodology

The Home Purchase Risk Score combines environmental hazards that create unexpected costs for homebuyers: water system violations requiring filtration, lead service lines requiring replacement, radon requiring mitigation systems, flood zones requiring insurance, and aging infrastructure requiring upgrades. These are factors that standard home inspections may not fully capture.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-06-04.

Frequently Asked Questions

What is the Home Purchase Risk Score?

This score (0-100) estimates the hidden environmental costs a homebuyer may face: water filtration needs, lead pipe replacement, radon mitigation, flood insurance, and infrastructure upgrades. Higher scores mean more potential unexpected expenses after purchase.

What should homebuyers do in high-risk ZIP codes?

Request a water quality test, check for lead service lines with the utility, test for radon before closing, verify FEMA flood zone designation, and factor in potential remediation costs ($5,000-$30,000+) to your budget.