FEMA NRI v1.20Released December 2025Methodology

Virginia Disaster Risk

Natural disaster risk data for all 133 counties.

FEMA release

December 2025

Mean county NRI score

33.3

Counties with Data

133

of 133 total

County risk atlas

Virginia hazard exposure by county

FEMA NRI v1.20 scores on a 0–100 relative scale. Toggle the composite and five selected hazard categories out of FEMA's 18. Flood is the higher of Coastal Flooding and Inland Flooding NRI scores.

Counties

133/133

Mean county NRI score

33.3

Risk layers

Highest Risk Counties

Fairfax County

Relatively High

NRI score 94.7

Chesterfield County

Relatively Moderate

NRI score 84.8

Henrico County

Relatively Moderate

NRI score 83.4

Prince William County

Relatively Moderate

NRI score 83.2

Norfolk city

Relatively Moderate

NRI score 81.2

Lowest Risk Counties

Norton city

Very Low

NRI score 1.6

Falls Church city

Very Low

NRI score 1.6

Poquoson city

Very Low

NRI score 2.4

Williamsburg city

Very Low

NRI score 2.4

Highland County

Very Low

NRI score 2.5

All Virginia Counties

County	NRI score	FEMA Rating	Flood	Wildfire	Tornado	Earthquake
Fairfax County	94.7	Relatively High	97.0	34.0	54.5	92.8
Chesterfield County	84.8	Relatively Moderate	89.5	44.0	76.8	89.6
Henrico County	83.4	Relatively Moderate	85.4	34.5	81.0	93.4
Prince William County	83.2	Relatively Moderate	88.0	18.2	76.5	80.9
Norfolk city	81.2	Relatively Moderate	82.4	32.9	74.1	78.1
Accomack County	81.0	Relatively Moderate	96.8	79.5	18.0	51.1
Chesapeake city	80.9	Relatively Low	82.9	66.4	71.8	71.1
Richmond city	78.4	Relatively Low	82.6	18.0	66.8	92.7
Albemarle County	78.1	Relatively Low	85.1	64.3	52.2	85.6
Loudoun County	78.1	Relatively Low	83.9	37.4	74.7	77.9
Rockingham County	75.0	Relatively Low	84.6	64.4	29.1	67.0
Alexandria city	73.7	Relatively Low	81.8	5.7	39.9	80.0
Roanoke city	72.9	Relatively Low	84.1	8.5	33.0	74.7
Newport News city	72.2	Relatively Low	71.4	34.6	74.1	76.3
Augusta County	68.6	Relatively Low	80.2	72.0	34.1	70.6
Danville city	68.0	Relatively Low	81.5	13.8	61.5	64.2
Arlington County	66.8	Relatively Low	73.8	5.7	44.1	73.0
Stafford County	65.0	Relatively Low	75.5	18.2	52.2	70.5
Pittsylvania County	63.8	Relatively Low	77.4	44.6	40.4	67.0
Henry County	63.6	Relatively Low	76.6	22.3	43.7	67.9
Hampton city	61.7	Relatively Low	80.4	24.3	56.1	65.0
Tazewell County	60.2	Relatively Low	75.1	57.7	15.4	68.1
Suffolk city	60.1	Relatively Low	61.0	55.6	55.7	54.0
Shenandoah County	59.8	Relatively Low	73.9	63.4	27.3	56.6
Virginia Beach city	57.9	Relatively Low	67.4	55.8	66.7	67.5
Smyth County	57.8	Relatively Low	61.9	31.3	21.1	61.5
Lee County	57.3	Relatively Low	72.8	80.6	34.9	60.4
Mecklenburg County	54.3	Relatively Low	56.6	24.3	33.8	65.0
Portsmouth city	54.0	Relatively Low	64.2	19.8	51.0	64.9
Hanover County	53.5	Relatively Low	61.5	31.7	51.0	83.8
James City County	53.3	Relatively Low	60.8	46.4	51.1	61.1
Spotsylvania County	52.9	Relatively Low	65.3	17.4	44.7	76.2
Roanoke County	52.2	Relatively Low	69.2	32.3	24.6	57.9
Bedford County	51.2	Relatively Low	68.3	66.6	25.1	60.2
Buchanan County	50.6	Relatively Low	70.2	72.0	9.9	48.1
Wise County	50.4	Relatively Low	66.3	84.3	21.6	57.8
Lynchburg city	49.3	Relatively Low	65.3	8.7	31.8	73.0
Wythe County	48.7	Relatively Low	50.3	21.3	14.8	61.0
Fauquier County	47.7	Relatively Low	65.8	34.8	16.5	61.2
Montgomery County	47.5	Relatively Low	63.6	37.0	23.7	73.4
Halifax County	47.0	Relatively Low	54.4	25.5	34.3	63.3
Washington County	46.6	Relatively Low	63.5	33.2	30.1	72.7
Culpeper County	46.2	Relatively Low	62.0	35.5	31.3	65.1
Pulaski County	45.9	Relatively Low	65.8	25.9	17.7	68.0
Carroll County	45.1	Relatively Low	42.7	55.9	30.4	47.5
Frederick County	44.7	Relatively Low	60.0	57.8	33.4	59.7
York County	44.7	Relatively Low	57.9	55.9	42.4	54.3
Northampton County	44.5	Relatively Low	57.2	29.8	22.6	32.3
Franklin County	42.7	Very Low	62.2	38.1	17.9	55.2
Scott County	42.0	Very Low	65.0	52.3	19.9	64.5
Northumberland County	40.0	Very Low	68.4	19.6	27.2	38.9
Alleghany County	38.1	Very Low	56.3	18.1	9.4	34.2
Isle of Wight County	37.9	Very Low	61.8	48.4	32.3	46.1
Page County	37.9	Very Low	56.6	53.3	18.9	43.1
Westmoreland County	37.4	Very Low	64.8	16.6	26.9	47.5
Russell County	36.5	Very Low	48.2	54.4	16.4	55.1
Nelson County	34.1	Very Low	58.2	46.7	19.7	45.4
Rockbridge County	33.3	Very Low	55.8	59.1	16.0	38.1
Prince Edward County	32.4	Very Low	25.3	12.8	26.6	65.2
Lancaster County	32.3	Very Low	60.6	18.4	21.4	42.9
Louisa County	32.2	Very Low	38.5	22.7	33.3	76.4
Campbell County	32.0	Very Low	49.7	43.0	23.0	61.0
Warren County	31.6	Very Low	55.7	36.4	24.7	45.2
Southampton County	29.8	Very Low	29.8	15.8	23.4	42.2
Nottoway County	29.0	Very Low	12.8	8.8	24.4	59.6
Brunswick County	28.1	Very Low	28.8	21.5	23.0	44.1
Harrisonburg city	26.6	Very Low	44.2	10.6	23.2	65.1
Orange County	25.6	Very Low	35.6	30.6	25.4	61.9
Grayson County	24.7	Very Low	28.4	45.6	18.6	39.9
Charlottesville city	24.3	Very Low	33.3	0.3	24.3	70.9
Middlesex County	23.8	Very Low	58.0	31.4	23.2	36.9
Gloucester County	22.6	Very Low	66.6	45.2	29.9	42.5
Powhatan County	21.1	Very Low	29.7	12.8	26.0	72.2
Amherst County	21.0	Very Low	41.6	45.1	22.2	54.4
Patrick County	20.9	Very Low	42.3	22.3	21.3	37.5
Caroline County	20.7	Very Low	26.8	19.4	30.2	59.9
Lunenburg County	19.8	Very Low	17.1	15.4	22.9	52.8
Cumberland County	19.7	Very Low	16.5	8.1	17.6	60.5
Dinwiddie County	19.3	Very Low	22.1	21.9	28.1	55.4
Buckingham County	19.0	Very Low	24.8	20.7	22.6	62.9
Salem city	18.6	Very Low	44.8	1.4	12.6	49.0
Essex County	18.6	Very Low	55.6	10.2	22.9	43.2
Botetourt County	18.1	Very Low	42.4	25.1	12.0	35.7
Dickenson County	17.9	Very Low	37.6	83.3	8.4	36.0
Greensville County	17.8	Very Low	16.2	12.2	19.9	40.8
Charlotte County	17.4	Very Low	19.8	11.3	17.8	45.7
Hopewell city	17.2	Very Low	48.6	3.2	33.1	64.0
Petersburg city	17.0	Very Low	36.2	15.1	29.0	66.1
Winchester city	16.9	Very Low	31.9	5.2	25.3	63.0
Manassas city	16.6	Very Low	31.7	0.8	28.5	55.9
Giles County	16.6	Very Low	42.2	12.9	10.2	43.2
King and Queen County	16.2	Very Low	51.6	17.6	19.1	34.4
Goochland County	15.5	Very Low	28.7	9.5	24.8	71.5
New Kent County	14.1	Very Low	52.8	27.3	24.9	41.0
Prince George County	13.9	Very Low	40.0	24.2	28.0	51.8
Fluvanna County	13.5	Very Low	26.1	16.3	23.5	67.3
Sussex County	13.2	Very Low	17.3	19.9	20.8	43.5
Bland County	13.0	Very Low	29.5	6.4	5.0	27.5
King George County	12.8	Very Low	43.6	12.4	12.3	39.7
Mathews County	12.2	Very Low	80.0	40.1	16.8	33.4
Amelia County	12.0	Very Low	11.4	6.3	19.8	49.5
Staunton city	10.6	Very Low	30.4	11.2	15.5	41.4
Richmond County	10.4	Very Low	48.2	4.1	20.3	33.6
Waynesboro city	10.3	Very Low	31.1	2.6	16.4	48.3
Covington city	9.7	Very Low	23.6	0.2	5.4	26.9
Martinsville city	9.6	Very Low	23.1	0.6	26.9	60.7
Charles City County	9.3	Very Low	45.2	21.6	17.5	37.0
Greene County	9.3	Very Low	24.8	42.8	14.2	42.0
Fredericksburg city	8.7	Very Low	20.6	1.7	21.0	57.5
Bristol city	8.6	Very Low	23.1	0.6	16.5	59.5
Madison County	8.4	Very Low	19.5	39.8	13.9	44.3
King William County	8.3	Very Low	50.6	8.9	19.4	36.6
Franklin city	7.5	Very Low	16.6	2.1	19.9	36.5
Clarke County	6.9	Very Low	16.6	33.0	14.5	34.8
Rappahannock County	6.9	Very Low	20.5	38.5	12.1	27.6
Galax city	6.8	Very Low	13.2	23.7	13.7	34.5
Floyd County	6.6	Very Low	17.3	49.4	11.0	28.2
Craig County	6.2	Very Low	26.2	8.7	5.2	18.3
Colonial Heights city	6.0	Very Low	43.0	1.7	21.6	41.1
Bath County	5.4	Very Low	16.7	21.0	4.4	21.6
Fairfax city	5.3	Very Low	13.5	1.0	20.1	47.8
Appomattox County	5.1	Very Low	14.7	21.3	15.1	41.2
Emporia city	5.0	Very Low	13.5	0.9	16.3	37.6
Manassas Park city	4.9	Very Low	15.1	0.4	16.6	32.8
Surry County	4.7	Very Low	42.0	16.9	14.2	28.1
Lexington city	3.7	Very Low	13.1	2.3	9.5	46.2
Buena Vista city	3.3	Very Low	16.4	1.0	7.4	22.3
Radford city	2.6	Very Low	11.4	2.7	8.1	44.8
Highland County	2.5	Very Low	11.7	13.3	3.1	13.5
Williamsburg city	2.4	Very Low	37.4	8.2	19.0	40.5
Poquoson city	2.4	Very Low	62.4	17.4	13.0	23.9
Falls Church city	1.6	Very Low	5.4	0.1	13.0	30.1
Norton city	1.6	Very Low	7.3	23.6	10.8	31.8

Frequently Asked Questions

How many Virginia county records are included?

RiskByCounty includes 133 Virginia county records from FEMA NRI v1.20 (December 2025).

Which FEMA county ratings appear in Virginia?

FEMA NRI v1.20 (December 2025) county rating counts for Virginia: Very Low: 85; Relatively Low: 42; Relatively Moderate: 5; Relatively High: 1; Very High: 0; Not available: 0.

How complete are the five selected hazard fields for Virginia?

FEMA NRI v1.20 (December 2025) availability among 133 county records: Flood: 133 of 133; Wildfire: 133 of 133; Tornado: 133 of 133; Earthquake: 133 of 133; Hurricane: 133 of 133. RiskByCounty displays five selected hazard categories out of FEMA's 18.

Official Ready.gov resource

Continue to Ready.gov for federal emergency-planning information maintained outside RiskByCounty.

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Data Source

County data sourced from FEMA National Risk Index v1.20, released December 2025. Values are labeled NRI score (0–100 relative scale). RiskByCounty displays five selected hazard categories out of FEMA's 18; flood is the higher of the Coastal Flooding and Inland Flooding source scores.

RiskByCounty presents county-level source fields and deterministic arithmetic summaries.

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