Harpers Ferry - Incorporated
County: Jefferson, WV PDC Region: 9
(Incorporated Place Scale, All Risk Indicators Report)
April 2026
Cumulative Flood Risk Score
56.5% ModerateRanks 100th of 229 incorporated places in the state
- 7 of 25 risk indicators among the top 10% incorporated places.
- 8 of 25 risk indicators among the top 20% incorporated places.
Noteworthy Flood Risk Facts for Harpers Ferry - Incorporated
Table 1. Noteworthy Flood Risk Facts: A Cumulative Flood Risk Index of 25 flood factors reveals that Harpers Ferry - Incorporated ranks 100th of 229 incorporated places in the state with a Cumulative Flood Risk Score of 56.5%. Below are all 25 flood risk indicators used in the risk index. Click on the More Info link for rationale and recommendations of each indicator.
| Risk Indicator | Description | More Info |
Supplementary External Links |
|---|---|---|---|
| Floodplain Area Ratio | 18.5% of total community area lies within the Special Flood Hazard Area. | Click for more information. | Floodplain Area Ratio by Incorporated Place Floodplain Area Ratio Risk Indicator Report |
| Floodplain Length Ratio | 0.00762 miles/acre of floodplain length in miles to total community area. | Click for more information. | Floodplain Length Ratio by Incorporated Place |
| Flood Declared Disasters | 12 flood declared disasters since 1953. | Click for more information. | |
| Flood Depth Median | 26.4 feet median base flood depth. | Click for more information. | Median Flood Depth by Incorporated Place (FEMA 1% Flood) Median Flood Depth by Incorporated Place (FEMA 1% Flood) Percent Rank Classification |
| Building Floodplain Count | 31 buildings in a high-risk flood zone. | Click for more information. | Building Count in SFHA by Incorporated Place Building Count in SFHA by Incorporated Place(Percent Rank) |
| Building Floodway Count | 0 buildings in the regulatory floodway or main river channel. | Click for more information. | Floodway Building Ratio by Incorporated Place |
| Building Floodplain Ratio | 11.2% of floodplain buildings to total buildings. | Click for more information. | Floodplain Building Ratio by Incorporated Place |
| Building Density | 0.42 buildings/acre density in floodplain. | Click for more information. | Building Density in SFHA by Incorporated Community |
| Building Median Value | $188,000 median building value in floodplain. | Click for more information. | |
| Bldg. Mobile Homes Ratio | 0.0% of single-family dwellings in floodplain are manufactured homes. | Click for more information. | |
| Bldg. Subgrade Basements Ratio | 90.3% of floodplain buildings have subgrade basements. | Click for more information. | |
| Building 1-Story Ratio | 3.2% of floodplain buildings have only one story. | Click for more information. | |
| Bldg. Year Pre-FIRM Ratio | 100.0% of floodplain buildings are Pre-FIRM or built with no FIRM in effect. | Click for more information. | Building Year Pre-FIRM Ratio by Incorporated Place Building Year Pre-FIRM Ratio by Incorporated Place (Percent Rank) |
| Bldg. Year Minus Rated Post-FIRM Ratio | 0.0% of floodplain buildings are Post-FIRM with lowest floor below BFE. | Click for more information. | Building Year Post-FIRM Minus-Rated Building Ratio by Incorporated Place Building Year Post-FIRM Minus-Rated Building Ratio by Incorporated Place (Percent Rank) |
| Essential Facilities | 0 essential facilities in moderate and high risk floodplains. | Click for more information. | |
| Roads Inundated Ratio | 31.6% of roads flooded by a 1% annual chance (100-yr) major flood. | Click for more information. | Roads Inundated Ratio for 1% Flood by Incorporated Place |
| Community Assets Historical | 29 historical assets in floodplain. | Click for more information. | |
| Community Assets Non-Historical | 1 non-historical assets in floodplain. | Click for more information. | |
| Bldg. Substantial Damage Count | 24 bldgs. substantially damaged by a 1% annual chance (100-yr) flood. | Click for more information. | |
| Bldg. Substantial Damage Ratio | 77.4% of buildings in floodplain substantially damaged by major storm. | Click for more information. | |
| Bldg. Previous Damage Claims | 11 buildings have prior damage claims. | Click for more information. | |
| Bldg. Repetitive Loss Structures | 2 repetitive loss structures. | Click for more information. | |
| Population in Floodplain Ratio | 4.8% of the population resides in a high-risk flood zone. | Click for more information. | |
| Population Displaced Ratio | 4.8% of population displaced by a 1% annual chance (100-yr) flood event. | Click for more information. | |
| WV Social Vulnerability Index | 3.1% index score of WV Social Vulnerability. | Click for more information. | Social Vulnerability Index (SVI) by Incorporated Place (Percent Rank) |
| Cumulative Index | 56.5% cumulative risk index score. | Click for more information. |
Flood Risk Index Scores for Harpers Ferry - Incorporated
Table 2. Flood Risk Index Scores: A Cumulative Flood Risk Index of 25 flood factors reveals that Harpers Ferry - Incorporated ranks 100th of 229 incorporated places in the state with a Cumulative Flood Risk Score of 56.5%. Below are all 25 flood risk indicators used in the risk index with the indicator scores and rankings.
| Category | Flood Risk Indicator | Value for Harpers Ferry - Incorporated | Indicator Score (0 - 100%) |
Indicator Rating |
|---|---|---|---|---|
| Floodplain Characteristics | Floodplain Area Ratio Click for more information. | 18.5% | 64.9% | Relatively High |
| Floodplain Length Ratio Click for more information. | 0.00762 Miles/Acre | 78.9% | Relatively High | |
| Flood Declared Disasters Click for more information. | 12 | 10.9% | Very Low | |
| Flood Depth Median Click for more information. | 26.4 Ft | 100.0% | VERY HIGH | |
| Floodplain Characteristics Index, 55th | 75.8% | Relatively High | ||
| Building Exposure | Building Floodplain Count Click for more information. | 31 | 42.1% | Moderate |
| Building Floodway Count Click for more information. | 0 | 0.0% | Very Low | |
| Building Floodplain Ratio Click for more information. | 11.2% | 58.7% | Moderate | |
| Building Density Click for more information. | 0.42 /Acre | 41.2% | Moderate | |
| Building Exposure Index, 147th | 35.9% | Relatively Low | ||
| Building Characteristics | Building Median Value Click for more information. | $188,000 | 99.5% | VERY HIGH |
| Bldg. Mobile Homes Ratio Click for more information. | 0.0% | 0.0% | Very Low | |
| Bldg. Subgrade Basements Ratio Click for more information. | 90.3% | 100.0% | VERY HIGH | |
| Building 1-Story Ratio Click for more information. | 3.2% | 19.7% | Very Low | |
| Bldg. Year Pre-FIRM Ratio Click for more information. | 100.0% | 98.6% | VERY HIGH | |
| Bldg. Year Minus Rated Post-FIRM Ratio Click for more information. | 0.0% | 0.0% | Very Low | |
| Building Characteristics Index, 136th | 40.7% | Moderate | ||
| Critical Infrastructure | Essential Facilities Click for more information. | 0 | 0.0% | Very Low |
| Roads Inundated Ratio Click for more information. | 31.6% | 89.9% | Very High | |
| Critical Infrastructure Index, 115th | 50.0% | Moderate | ||
| Community Assets | Community Assets Historical Click for more information. | 29 | 94.2% | VERY HIGH |
| Community Assets Non-Historical Click for more information. | 1 | 26.3% | Relatively Low | |
| Community Assets Index, 45th | 80.7% | Very High | ||
| Building Damage Loss | Bldg. Substantial Damage Count Click for more information. | 24 | 91.6% | VERY HIGH |
| Bldg. Substantial Damage Ratio Click for more information. | 77.4% | 100.0% | VERY HIGH | |
| Bldg. Previous Damage Claims Click for more information. | 11 | 47.3% | Moderate | |
| Bldg. Repetitive Loss Structures Click for more information. | 2 | 43.8% | Moderate | |
| Building Damage Loss Index, 54th | 76.7% | Relatively High | ||
| People / Social Vulnerabilities | Population in Floodplain Ratio Click for more information. | 4.8% | 34.6% | Relatively Low |
| Population Displaced Ratio Click for more information. | 4.8% | 47.3% | Moderate | |
| WV Social Vulnerability Index Click for more information. | - | 3.1% | Very Low | |
| People / Social Vulnerabilities Index, 175th | 23.6% | Relatively Low | ||
| Risk Index | Cumulative Index Click for more information. | 56.5% | Moderate | |
Risk Index Legend
Flood Risk Indicators of Harpers Ferry - Incorporated Compared to Other Incorporated Places
Table 3. Flood Risk Index Comparison: Flood risk indicator values for Harpers Ferry - Incorporated compared to descriptive statistics of all incorporated places.
| Category | Flood Risk Indicator | Value for Harpers Ferry - Incorporated | Median Value | Mean Value | Min Value | Max Value | State Stats |
|---|---|---|---|---|---|---|---|
| Floodplain Characteristics | Floodplain Area Ratio Click for more information. | 18.5% | 16.3% | 18.3% | 1.2% | 79.4% | 3.4% |
| Floodplain Length Ratio Click for more information. | 0.00762 Miles/Acre | 0.00518 Miles/Acre | 0.00593 Miles/Acre | 0.0006 Miles/Acre | 0.02235 Miles/Acre | 0.00111 Miles/Acre | |
| Flood Declared Disasters Click for more information. | 12 | 17 | 17 | 9 | 28 | 64 | |
| Flood Depth Median Click for more information. | 26.4 Ft | 1.8 Ft | 2.4 Ft | 0.0 Ft | 26.4 Ft | 1.8 Ft | |
| Building Exposure | Building Floodplain Count Click for more information. | 31 | 58 | 140 | 11 | 2,685 | 82,408 |
| Building Floodway Count Click for more information. | 0 | 2 | 14 | 0 | 189 | 8,237 | |
| Building Floodplain Ratio Click for more information. | 11.2% | 11.3% | 15.5% | 0.2% | 63.1% | 7.4% | |
| Building Density Click for more information. | 0.42 /Acre | 0.75 /Acre | 0.93 /Acre | 0.07 /Acre | 4.53 /Acre | 0.16 /Acre | |
| Building Characteristics | Building Median Value Click for more information. | $188,000 | $41,500 | $48,417 | $12,800 | $213,800 | $38,200 |
| Bldg. Mobile Homes Ratio Click for more information. | 0.0% | 13.6% | 18.1% | 0.0% | 100.0% | 27.5% | |
| Bldg. Subgrade Basements Ratio Click for more information. | 90.3% | 25.5% | 28.5% | 0.0% | 90.3% | 24.8% | |
| Building 1-Story Ratio Click for more information. | 3.2% | 80.4% | 75.3% | 0.0% | 100.0% | 84.0% | |
| Bldg. Year Pre-FIRM Ratio Click for more information. | 100.0% | 86.6% | 82.1% | 5.9% | 100.0% | 77.5% | |
| Bldg. Year Minus Rated Post-FIRM Ratio Click for more information. | 0.0% | 2.4% | 4.8% | 0.0% | 39.9% | 5.8% | |
| Critical Infrastructure | Essential Facilities Click for more information. | 0 | 1 | 2 | 0 | 20 | 489 |
| Roads Inundated Ratio Click for more information. | 31.6% | 13.1% | 15.8% | 0.0% | 66.7% | 6.7% | |
| Community Assets | Community Assets Historical Click for more information. | 29 | 0 | 14 | 0 | 1,259 | 2,758 |
| Community Assets Non-Historical Click for more information. | 1 | 2 | 4 | 0 | 55 | 2,092 | |
| Building Damage Loss | Bldg. Substantial Damage Count Click for more information. | 24 | 1 | 7 | 0 | 125 | 6,493 |
| Bldg. Substantial Damage Ratio Click for more information. | 77.4% | 0.9% | 5.9% | 0.0% | 77.4% | 7.9% | |
| Bldg. Previous Damage Claims Click for more information. | 11 | 18 | 71 | 0 | 2,873 | 27,882 | |
| Bldg. Repetitive Loss Structures Click for more information. | 2 | 5 | 27 | 0 | 1,574 | 9,698 | |
| People / Social Vulnerabilities | Population in Floodplain Ratio Click for more information. | 4.8% | 15.9% | 23.3% | 0.1% | 100.0% | 11.0% |
| Population Displaced Ratio Click for more information. | 4.8% | 8.0% | 16.1% | 0.0% | 100.0% | 6.6% | |
| WV Social Vulnerability Index Click for more information. | 3.1% | 53.7% | 53.1% | 0.0% | 100.0% | - | |
General Information Statistics for Harpers Ferry - Incorporated
Table 4. General Information and comparison statistics for Harpers Ferry - Incorporated.
| Total Area (ACRES) |
Total Structures | Total Population | Population Density (/SQ MILE) |
Number of Households | Average Household Size | |
|---|---|---|---|---|---|---|
| Harpers Ferry - Incorporated | 400 | 276 | 292 | 467.2 | 122 | 2.4 |
| STATE STATS | 15,500,454 | 1,118,761 | 1,801,049 | 74.4 | 711,352 | 2.5 |
| INCORPORATED PLACES STATS: | ||||||
| Median | 559 | 559 | 940 | 1,073.6 | 354 | 2.5 |
| Mean | 1,297 | 1,475 | 2,763 | 1,240.3 | 1,142 | 2.6 |
| Minimum | 34 (Sylvester - Inc) |
28 (Thurmond - Inc) |
4 (Thurmond - Inc) |
44.1 (Thurmond - Inc) |
4 (Thurmond - Inc) |
1.0 (Thurmond - Inc) |
| Maximum | 20,648 (Charleston - Inc) |
28,045 (Charleston - Inc) |
49,055 (Charleston - Inc) |
3,895.7 (Windsor Heights - Inc) |
21,779 (Charleston - Inc) |
4.7 (Pullman - Inc) |
Risk Indicator data last updated August 2024
