Riverine Flood Risk in New Mexico

All New Mexico counties ranked by FEMA National Risk Index riverine flood score

Riverine Flood risk — rivers and streams overflowing their banks after heavy rain or snowmelt — is rated for 33 of 33 New Mexico counties in FEMA's National Risk Index. Doña Ana County carries the state's highest riverine flood score at 98.4, with $133M in expected annual riverine flood losses.

2 New Mexico counties are rated High or Very High for riverine flood, and expected annual losses from riverine flood total roughly $641M statewide. The full ranking below links to each county's complete 18-hazard risk profile.

County Rankings — Riverine Flood

#CountyRiverine Flood ScoreRatingAnn. Freq.Ann. Loss
1 Doña Ana County
98.4
High 2.54 / yr $133M
2 Bernalillo County
96.3
High 2.14 / yr $93M
3 San Juan County
92.4
Medium 1.36 / yr $31M
4 Chaves County
92.3
Medium 1.50 / yr $37M
5 Eddy County
90.7
Medium 4.57 / yr $36M
6 Valencia County
89.6
Medium 0.61 / yr $30M
7 Otero County
88.6
Medium 1.96 / yr $27M
8 Santa Fe County
88.4
Medium 2.61 / yr $27M
9 Rio Arriba County
88.4
Medium 1.18 / yr $20M
10 Lea County
88.3
Medium 2.39 / yr $25M
11 McKinley County
86.8
Medium 1.43 / yr $15M
12 Sandoval County
84.3
Medium 2.36 / yr $21M
13 Roosevelt County
83.7
Medium 1.14 / yr $20M
14 Grant County
83.7
Medium 2.00 / yr $15M
15 San Miguel County
83.4
Medium 1.64 / yr $14M
16 Taos County
81.7
Medium 0.43 / yr $14M
17 Lincoln County
77.6
Medium 2.32 / yr $12M
18 Socorro County
76.2
Medium 1.39 / yr $9M
19 Sierra County
74.3
Medium 1.86 / yr $9M
20 Cibola County
73.4
Medium 0.93 / yr $9M
21 Torrance County
62.8
Low 0.71 / yr $6M
22 Colfax County
58.6
Low 1.21 / yr $5M
23 Luna County
57.5
Low 1.14 / yr $5M
24 Curry County
52.5
Low 0.79 / yr $7M
25 Mora County
50.7
Low 1.07 / yr $4M
26 Catron County
41.1
Low 1.14 / yr $3M
27 Quay County
38.5
Low 0.68 / yr $3M
28 Guadalupe County
29.9
Very Low 0.64 / yr $2M
29 Hidalgo County
14.9
Very Low 0.25 / yr $1M
30 De Baca County
11.5
Very Low 0.54 / yr $1M
31 Los Alamos County
11.1
Very Low 0.39 / yr $3M
32 Union County
7.1
Very Low 0.96 / yr $666K
33 Harding County
2.8
Very Low 0.14 / yr $390K

33 New Mexico counties with measurable riverine flood risk. See the national riverine flood ranking or all New Mexico counties by overall risk.

Frequently Asked Questions

Which New Mexico county has the highest riverine flood risk?

Doña Ana County has the highest FEMA riverine flood risk score in New Mexico at 98.4 (High), with $133M in expected annual losses and about 2.54 events per year.

How many New Mexico counties face significant riverine flood risk?

33 New Mexico counties record measurable riverine flood risk in FEMA's National Risk Index; 2 of them are rated High or Very High.

Other Hazards in New Mexico