ZIP Codes with Highest Flood Risk in Montana

Out of 166 ZIP codes with data in Montana, these are the highest-ranked areas for flood claims. See also: National ZIP Codes with Highest Flood Risk | All Montana Rankings

Statistic	Value
ZIP codes ranked	166
Highest value	211 claims
Median value	4 claims
State	Montana

Top 100 Worst ZIP Codes

Rank	ZIP Code	City	State	Flood Claims	Safety Score
1	59230	Glasgow	MT	211 claims	39/100
2	59301	Miles City	MT	155 claims	54/100
3	59404	Great Falls	MT	135 claims	51/100
4	59047	Livingston	MT	121 claims	60/100
5	59101	Billings	MT	101 claims	65/100
6	59602	Helena	MT	76 claims	37/100
7	59804	Missoula	MT	65 claims	59/100
8	59072	Roundup	MT	60 claims	48/100
9	59044	Laurel	MT	53 claims	72/100
10	59911	Bigfork	MT	53 claims	60/100
11	59901	Kalispell	MT	48 claims	62/100
12	59715	Bozeman	MT	35 claims	62/100
13	59102	Billings	MT	34 claims	70/100
14	59248	Nashua	MT	34 claims	43/100
15	59923	Libby	MT	32 claims	62/100
16	59405	Great Falls	MT	31 claims	56/100
17	59526	Harlem	MT	29 claims	40/100
18	59105	Billings	MT	26 claims	70/100
19	59068	Red Lodge	MT	25 claims	64/100
20	59912	Columbia Falls	MT	22 claims	63/100
21	59483	Sun River	MT	21 claims	65/100
22	59847	Lolo	MT	21 claims	64/100
23	59868	Seeley Lake	MT	21 claims	65/100
24	59001	Absarokee	MT	20 claims	64/100
25	59401	Great Falls	MT	20 claims	56/100
26	59412	Belt	MT	20 claims	64/100
27	59457	Lewistown	MT	19 claims	40/100
28	59538	Malta	MT	19 claims	59/100
29	59037	Huntley	MT	18 claims	78/100
30	59722	Deer Lodge	MT	18 claims	58/100
31	59523	Chinook	MT	17 claims	49/100
32	59036	Harlowton	MT	16 claims	73/100
33	59501	Havre	MT	16 claims	44/100
34	59808	Missoula	MT	16 claims	64/100
35	59088	Worden	MT	15 claims	55/100
36	59802	Missoula	MT	15 claims	64/100
37	59069	Reed Point	MT	14 claims	55/100
38	59601	Helena	MT	14 claims	42/100
39	59803	Missoula	MT	14 claims	64/100
40	59718	Bozeman	MT	13 claims	62/100
41	59937	Whitefish	MT	13 claims	65/100
42	59041	Joliet	MT	12 claims	61/100
43	59106	Billings	MT	12 claims	70/100
44	59019	Columbus	MT	11 claims	59/100
45	59050	Lodge Grass	MT	10 claims	67/100
46	59711	Anaconda	MT	10 claims	59/100
47	59833	Florence	MT	10 claims	68/100
48	59011	Big Timber	MT	9 claims	83/100
49	59327	Forsyth	MT	9 claims	70/100
50	59524	Dodson	MT	9 claims	69/100
51	59701	Butte	MT	9 claims	63/100
52	59859	Plains	MT	8 claims	68/100
53	59870	Stevensville	MT	8 claims	66/100
54	59064	Pompeys Pillar	MT	7 claims	63/100
55	59270	Sidney	MT	7 claims	45/100
56	59330	Glendive	MT	7 claims	66/100
57	59714	Belgrade	MT	7 claims	56/100
58	59725	Dillon	MT	7 claims	65/100
59	59801	Missoula	MT	7 claims	69/100
60	59936	West Glacier	MT	7 claims	56/100
61	59063	Park City	MT	6 claims	63/100
62	59086	Wilsall	MT	6 claims	62/100
63	59241	Hinsdale	MT	6 claims	41/100
64	59261	Saco	MT	6 claims	70/100
65	59317	Broadus	MT	6 claims	69/100
66	59443	Fort Shaw	MT	6 claims	70/100
67	59487	Vaughn	MT	6 claims	67/100
68	59741	Manhattan	MT	6 claims	65/100
69	59752	Three Forks	MT	6 claims	70/100
70	59771	Bozeman	MT	6 claims	67/100
71	59829	Darby	MT	6 claims	66/100
72	59027	Emigrant	MT	5 claims	68/100
73	59029	Fromberg	MT	5 claims	68/100
74	59061	Nye	MT	5 claims	53/100
75	59070	Roberts	MT	5 claims	70/100
76	59410	Augusta	MT	5 claims	68/100
77	59417	Browning	MT	5 claims	53/100
78	59422	Choteau	MT	5 claims	69/100
79	59430	Denton	MT	5 claims	45/100
80	59635	East Helena	MT	5 claims	69/100
81	59875	Victor	MT	5 claims	53/100
82	59014	Bridger	MT	4 claims	69/100
83	59028	Fishtail	MT	4 claims	53/100
84	59034	Hardin	MT	4 claims	56/100
85	59080	Carbon County	MT	4 claims	—
86	59522	Chester	MT	4 claims	64/100
87	59645	White Sulphur Springs	MT	4 claims	62/100
88	59724	Dell	MT	4 claims	53/100
89	59754	Twin Bridges	MT	4 claims	70/100
90	59827	Conner	MT	4 claims	53/100
91	59832	Drummond	MT	4 claims	53/100
92	59866	Saint Regis	MT	4 claims	53/100
93	59018	Clyde Park	MT	3 claims	68/100
94	59201	Wolf Point	MT	3 claims	53/100
95	59255	Poplar	MT	3 claims	53/100
96	59353	Wibaux	MT	3 claims	69/100
97	59421	Cascade	MT	3 claims	70/100
98	59547	Zurich	MT	3 claims	53/100
99	59759	Whitehall	MT	3 claims	45/100
100	59820	Alberton	MT	3 claims	69/100

Methodology

Flood risk rankings use FEMA National Flood Insurance Program (NFIP) claim data. Total claims reflect historical flood events that resulted in insured property damage. High claim counts indicate areas with recurring flood exposure, which can compromise water infrastructure, introduce contaminant runoff, and damage home systems.

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

Why does flood history matter for home safety?

Flooding can contaminate drinking water supplies, damage water infrastructure, introduce sewage and chemical runoff, and compromise home foundations and electrical systems. Repeated flooding indicates persistent risk that affects long-term home safety.

Where does the flood data come from?

Flood claim data comes from the FEMA National Flood Insurance Program (NFIP), which tracks all insured flood losses by ZIP code. This includes claims from hurricanes, river flooding, storm surge, and heavy rainfall events.

ZIP Codes with Highest Flood Risk in Montana — 2026

Top 100 Worst ZIP Codes

Methodology

Frequently Asked Questions

Why does flood history matter for home safety?

Where does the flood data come from?

Explore More Rankings

Related Rankings