Does Sigma flood?
Sigma, Virginia Beach, VA · ZIP code 23456: the ZIP code on 14 of the 15 flood insurance claims counted here. ZIP codes do not follow neighborhood lines.
Yes. Insured properties in and around Sigma have filed flood claims. About 36% of Sigma’s mapped area is inside FEMA’s Special Flood Hazard Area; the rest is in moderate or minimal-hazard Zone X. NFIP flood insurance records list 15 claims from the Census block groups that cover Sigma, from 1982 through 2016. 8 of them received a payment, totaling $75,121 (not adjusted for inflation). The busiest years were 2016 (5 claims), 2003 (2 claims), 2009 (2 claims).
What this page counts as Sigma
We could not find an openly licensed official boundary for Sigma, so this page uses a census-based area. For this page, Sigma means the 2010 Census block groups whose center lies within 1.6 km (1.0 miles) of the U.S. Geological Survey (GNIS) map point for Sigma (feature 1497153) and inside the Virginia Beach city limits (U.S. Census Bureau), each block group going to the nearest of the places we cover. Every number below is for exactly those block groups (listed in “How these numbers were made”), so the edges are approximate and may include or leave out a few blocks people would call Sigma. Sources: U.S. Census Bureau TIGERweb, 2010 Census Block Groups, National Park Service, National Register of Historic Places boundaries (NRHP polygons) and U.S. Geological Survey, Geographic Names Information System (GNIS) domestic names.
Past claims do not predict future flooding, and a neighborhood figure cannot tell you about one building. Look up the exact address on the FEMA Flood Map Service Center and get flood insurance quotes before you sign a lease or a contract.
Check a specific address in Sigma
Neighborhood figures are averages. Our address check looks up the FEMA flood zone at one address, from the same public maps: check if your address is in a flood zone.
Flood zones street by street in Sigma
The named streets in Sigma, longest first, with how much of each street’s length inside Sigma lies in FEMA’s high-risk flood zones (the Special Flood Hazard Area, zones A and V). Length is the part inside Sigma; the main zone is the FEMA zone covering most of that length. A street can cross several zones, so the zone at one address can differ from the street’s main zone: check the address above for that.
| Street | Length | In high-risk zones | Main zone |
|---|---|---|---|
| Sandbridge Rd | 1.4 mi | 3.8% | X (unshaded, minimal) (95%) |
| Cam Real S | 1.2 mi | 1.0% | X (unshaded, minimal) (99%) |
| Entrada Dr | 1.2 mi | 0.0% | X (unshaded, minimal) (100%) |
| Atwoodtown Rd | 5,220 ft | 4.1% | X (unshaded, minimal) (87%) |
| Los Conlonis Dr | 3,560 ft | 0.0% | X (unshaded, minimal) (100%) |
| Lotus Dr | 2,750 ft | 0.0% | X (unshaded, minimal) (93%) |
| Las Brisas Dr | 2,530 ft | 0.0% | X (unshaded, minimal) (100%) |
| Lotus Creek Dr | 2,310 ft | 16% | X (unshaded, minimal) (64%) |
| Brasileno Dr | 2,000 ft | 0.0% | X (unshaded, minimal) (100%) |
| Las Corrales Ct | 1,410 ft | 0.0% | X (unshaded, minimal) (100%) |
| Rio Grande Dr | 1,390 ft | 0.0% | X (unshaded, minimal) (100%) |
| Nimmo Pkwy | 890 ft | 0.0% | X (unshaded, minimal) (100%) |
| Verano Ct | 820 ft | 0.0% | X (unshaded, minimal) (100%) |
| Costa Grande Dr | 800 ft | 0.0% | X (unshaded, minimal) (100%) |
| Brasileno Ct | 780 ft | 0.0% | X (unshaded, minimal) (100%) |
| La Tierra Ct | 680 ft | 0.0% | X (unshaded, minimal) (100%) |
| Sonora Ct | 600 ft | 0.0% | X (unshaded, minimal) (100%) |
| Lotus Creek Ct | 580 ft | 0.0% | X (unshaded, minimal) (100%) |
| Los Conaes Way | 520 ft | 0.0% | X (unshaded, minimal) (100%) |
| Corrente Ln | 510 ft | 0.0% | X (unshaded, minimal) (100%) |
Streets: U.S. Census Bureau TIGERweb, Transportation (primary, secondary and local roads). Flood zones: FEMA National Flood Hazard Layer (NFHL), Flood Hazard Zones and FIRM Panels, retrieved November 5, 2026. Each street is clipped to the area boundary and measured in an equal-area projection. Street lengths are rounded.
Flood zones in Sigma
Share of Sigma’s mapped area (about 2.881 km²) in each FEMA flood zone, from FEMA National Flood Hazard Layer (NFHL), Flood Hazard Zones and FIRM Panels. Mapped base flood elevations inside the neighborhood range from 3 to 3 feet. Effective date of the FIRM panel(s) covering it (5155310138G, 5155310205G): January 16, 2015.
| FEMA zone | Share of area |
|---|---|
| X (unshaded, minimal) | 62% |
| AE | 36% |
| X (shaded, 0.2% annual chance) | 2.1% |
What the zones mean
- Zone AE (and A, AH, AO)
- High-risk: part of the Special Flood Hazard Area (SFHA), the area FEMA maps as having a 1-percent chance of flooding in any given year (the “100-year” or base flood). AE areas have a mapped base flood elevation.
- Zone VE (and V)
- High-risk coastal areas, also in the SFHA, where the base flood is expected to bring additional hazards from storm waves.
- Zone X (shaded)
- Moderate hazard: between the limits of the 1-percent and the 0.2-percent-annual-chance (“500-year”) flood.
- Zone X (unshaded)
- Minimal hazard: outside the SFHA and higher than the 0.2-percent-annual-chance flood elevation. Minimal is not zero: flood claims are filed from X zones too.
Source: FEMA Glossary: Flood Zones.
Flood insurance claims over time
Claims filed under the National Flood Insurance Program (NFIP) from the 2010 Census block groups that cover Sigma. This area is made of whole block groups, so every claim counted here comes from inside it. Only insured properties appear, so these counts understate total flooding.
By decade
| Decade | Claims | Paid |
|---|---|---|
| 1980s | 1 | $2,952 |
| 1990s | 1 | $3,079 |
| 2000s | 7 | $15,011 |
| 2010s | 6 | $54,079 |
By year of loss
Named flood events with the most claims
- Hurricane Matthew: 4 claims
- Flooding: 2 claims
- Hurricane Isabel: 2 claims
- November 2009 Nor'easter: 1 claims
- Tropical Storm Ernesto: 1 claims
FEMA labels some events only as “Flooding”. Claims by the flood zone the property was rated in:
- X/B/C (moderate or minimal): 11
- A/AE/AH/AO (high risk): 4
How much is flood insurance in Sigma?
The typical National Flood Insurance Program policy on single-family homes in Sigma costs $1,166 a year: the median of 92 policies that started between September 1, 2025 and August 31, 2026. Half of them cost between $1,043 and $1,267. That is the full amount paid for the year, the premium plus FEMA’s fees and surcharges, and every one of these policies is priced under Risk Rating 2.0. A quote for one building can be far from this: its elevation, foundation, age, coverage and deductible all change the price. Private flood insurance is not included.
Source: FEMA OpenFEMA Dataset: FIMA NFIP Redacted Policies - v3, computed November 5, 2026.
Why home insurance costs what it does in Sigma
This section is educational and is not insurance advice.
Flood insurance
ZIP codes do not follow neighborhood lines. This is a ZIP code on at least 5% of the flood claims counted for Sigma, within 10 km of it.
- ZIP code 23456: the median National Flood Insurance Program policy cost for single-family homes was $935 a year, the middle of 2,158 policies that started between September 1, 2025 and August 31, 2026. Half of them cost between $709 and $1,309. These policies are priced under Risk Rating 2.0.
- ZIP code 23456: NFIP records list 1,041 flood claims with a loss year from 1978 through 2026. The claims dataset is as of September 8, 2026.
Fire and wind
- USDA Forest Service Wildfire Risk to Communities gives Virginia Beach, VA a Risk to Homes national percentile rank of 0.789, which its methods call High (above the 70th percentile and below the 90th). That is the city rating, not a rating of Sigma alone. The summary file is dated April 15, 2026.
What to ask your agent
- Ask the agent how old the roof is.
- Ask whether a wind-mitigation discount is available for this house.
- Ask how flood coverage differs from the homeowners policy. A standard homeowners policy does not cover flood. Flood coverage is a separate policy.
- Ask whether the policy has a separate hurricane or windstorm deductible, and how that deductible is calculated.
- Ask when coverage would start. A new National Flood Insurance Program policy generally takes effect 30 days after purchase.
Flood coverage and the 30-day wait: FEMA fact sheet, Jan. 21, 2025; 44 CFR 61.11.
What do NFIP records show for flood insurance in Sigma?
ZIP code 23456: the median National Flood Insurance Program policy cost for single-family homes was $935 a year, the middle of 2,158 policies that started between September 1, 2025 and August 31, 2026. Half of them cost between $709 and $1,309. These policies are priced under Risk Rating 2.0. ZIP code 23456: NFIP records list 1,041 flood claims with a loss year from 1978 through 2026. The claims dataset is as of September 8, 2026.
What do public fire and wind records show for Sigma?
USDA Forest Service Wildfire Risk to Communities gives Virginia Beach, VA a Risk to Homes national percentile rank of 0.789, which its methods call High (above the 70th percentile and below the 90th). That is the city rating, not a rating of Sigma alone. The summary file is dated April 15, 2026.
What should I ask an insurance agent about a home in Sigma?
Ask the agent how old the roof is. Ask whether a wind-mitigation discount is available for this house. Ask how flood coverage differs from the homeowners policy. A standard homeowners policy does not cover flood. Flood coverage is a separate policy. Ask whether the policy has a separate hurricane or windstorm deductible, and how that deductible is calculated. Ask when coverage would start. A new National Flood Insurance Program policy generally takes effect 30 days after purchase.
Sources: OpenFEMA NFIP Redacted Policies v3; OpenFEMA NFIP Redacted Claims v3; USDA Forest Service, Wildfire Risk to Communities, community summaries; Wildfire Risk to Communities methods.
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Before you rent or buy in Sigma
- Look up the exact address on the FEMA Flood Map Service Center; a neighborhood can mix high-risk and minimal-hazard zones.
- Ask the landlord or seller about past flooding and flood insurance claims at the property.
- Get a flood insurance quote early: new NFIP policies usually take 30 days to start (FloodSmart (NFIP): Buy a Flood Insurance Policy).
- Ask which floor the unit is on and where parking, storage and mechanical equipment sit.
Living in Sigma
Flood maps are only one part of choosing a neighborhood. To compare Sigma with other Virginia Beach neighborhoods on more than flooding, see Virginia Beach on StrollPlace.
Buyer and renter FAQ
Does Sigma flood?
Yes. Insured properties in and around Sigma have filed flood claims. About 36% of Sigma’s mapped area is inside FEMA’s Special Flood Hazard Area; the rest is in moderate or minimal-hazard Zone X. NFIP flood insurance records list 15 claims from the Census block groups that cover Sigma, from 1982 through 2016. 8 of them received a payment, totaling $75,121 (not adjusted for inflation). The busiest years were 2016 (5 claims), 2003 (2 claims), 2009 (2 claims). Past claims do not predict future flooding, and conditions vary street by street, so check the specific address.
Is Sigma in a flood zone?
About 36% of Sigma’s mapped area is inside FEMA’s Special Flood Hazard Area; the rest is in moderate or minimal-hazard Zone X. Shares by zone: X (unshaded, minimal) 62%; AE 36%; X (shaded, 0.2% annual chance) 2.1%. The FIRM panel(s) covering it took effect January 16, 2015.
Which streets in Sigma are in a high-risk flood zone?
No street listed here has most of its length in FEMA high-risk zones. Less than 10% of Sandbridge Rd, Cam Real S, Entrada Dr, Atwoodtown Rd, Los Conlonis Dr, Lotus Dr, Las Brisas Dr and Brasileno Dr does. Zones can change along a street, so check the exact address.
What ZIP code is Sigma in?
Sigma is in Virginia Beach, VA. ZIP code 23456: the ZIP code on 14 of the 15 flood insurance claims counted here. ZIP codes do not follow neighborhood lines. Check the specific address for its own flood zone.
Do renters need flood insurance?
Standard renters policies usually do not cover flood. Renters in a community that participates in the NFIP can buy contents-only flood coverage, up to $100,000 for belongings.
How long does a new flood policy take to start?
A new NFIP policy generally takes effect 30 days after purchase. Exceptions include no wait when the policy is bought while making, increasing, extending or renewing a mortgage, and a one-day wait in a newly designated high-risk zone within 12 months of the map change.
How much coverage can NFIP provide?
For a one-to-four family home, NFIP building coverage goes up to $250,000 and contents coverage up to $100,000. You can buy flood insurance even if you are not in a high-risk zone, as long as your community participates in the NFIP.
How much is flood insurance in Sigma?
The typical NFIP flood insurance policy on single-family homes in Sigma cost $1,166 a year: the median of 92 policies that started between September 1, 2025 and August 31, 2026. Half cost between $1,043 and $1,267. One building’s quote can be far from this; its elevation, foundation, age, coverage and deductible all change the price.
FAQ sources: FloodSmart (NFIP): Buy a Flood Insurance Policy; FEMA Fact Sheet: Think you don’t need flood insurance? Think again (Jan. 21, 2025); 44 CFR 61.11, Effective date and time of coverage.
Nearby neighborhoods
- Princess Anne
- Does Lake View flood?
- Seatack
- Oceana
- Does The Lakes flood?
- Does London Bridge flood?
How these numbers were made
Area: the census-based definition above, using U.S. Census Bureau TIGERweb, 2010 Census Block Groups, National Park Service, National Register of Historic Places boundaries (NRHP polygons) and U.S. Geological Survey, Geographic Names Information System (GNIS) domestic names. Flood zone shares: the area polygon intersected with FEMA National Flood Hazard Layer (NFHL), Flood Hazard Zones and FIRM Panels, area computed in an equal-area projection; retrieved November 5, 2026. Claims: OpenFEMA NFIP Redacted Claims v3 records for City of Virginia Beach (county code 51810), dataset as of September 8, 2026, retrieved November 5, 2026. Claims are counted for exactly the block groups that make up the area. Block groups used: 518100454203. Neighboring pages can share a block group, so their counts can overlap. Paid totals add building, contents and Increased Cost of Compliance payments and are not adjusted for inflation; a claim whose FEMA record shows a negative payment (an adjustment) counts as zero. See the methodology.
Sources
- Federal Emergency Management Agency (FEMA), FEMA OpenFEMA Dataset: FIMA NFIP Redacted Claims - v3. Retrieved on November 5, 2026.
- FEMA National Flood Hazard Layer (NFHL), Flood Hazard Zones and FIRM Panels. Retrieved on November 5, 2026.
- U.S. Census Bureau TIGERweb, 2010 Census Block Groups, National Park Service, National Register of Historic Places boundaries (NRHP polygons) and U.S. Geological Survey, Geographic Names Information System (GNIS) domestic names.
- FEMA Glossary: Flood Zones.
- FloodSmart (NFIP): Buy a Flood Insurance Policy.
- FEMA Fact Sheet: Think you don’t need flood insurance? Think again (Jan. 21, 2025).
- 44 CFR 61.11, Effective date and time of coverage.
- OpenFEMA Terms and Conditions.
- FEMA OpenFEMA Dataset: FIMA NFIP Redacted Policies - v3.
- OpenFEMA NFIP Redacted Policies v3.
- OpenFEMA NFIP Redacted Claims v3.
- USDA Forest Service, Wildfire Risk to Communities, community summaries.
- Wildfire Risk to Communities methods.
- U.S. Census Bureau TIGERweb, Transportation (primary, secondary and local roads).
Data as of September 8, 2026 (FEMA claims) and November 5, 2026 (flood zones). Page last updated November 5, 2026.