Automated baseline from FEMA and NOAA data, release 2026-10.

Belknap County, NH

Risk-assessment baseline packet. County FIPS 33001. Release 2026-10, data as of 2026-09-30.

Summary

Plan status as of 2026-09-30: No county-level plan row in FEMA data.

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($16,197,358 a year), Lightning ($2,234,452) and Hurricane ($1,884,504).

The packet's tables are organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B (B1-a to B2-c); the summaries below follow the same order.

Download the packet

Full packet as a web page. File manifest (checksums, source versions).

Plan clock

No county-level plan row in FEMA data

What changed since your last plan

No county-level plan row in FEMA data, so there is no approval date to count from.

Plan status for every jurisdiction listed in this county

11 jurisdictions. Each row is that jurisdiction's own plan clock.

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Laconia cityCityApproved, expires 2030-09-08City of Laconia, New Hampshire Hazard Mitigation Plan Update, 2025 (FEMA plan 111099)2025-09-092030-09-081,439
Alton townTownApproved, expires 2029-07-17Alton, NH Hazard Mitigation Plan Update 2024 (FEMA plan 109826)2024-07-182029-07-171,021
Barnstead townTownApproved, expires 2029-04-18Town of Barnstead, NH Hazard Mitigation Plan Update 2023 (FEMA plan 109346)2024-04-192029-04-18931
Belmont townTownApproved, expires 2030-02-13Town of Belmont, NH Hazard Mitigation Plan Update 2024 (FEMA plan 110364)2025-02-142030-02-131,232
Center Harbor townTownExpired on 2026-07-05Town of Center Harbor, New Hampshire Hazard Mitigation Plan Update 2021 (FEMA plan 107618)2021-07-062026-07-05-87
Gilford townTownApproved, expires 2031-04-12Town of Gilford, NH Hazard Mitigation Plan Update 2026 (FEMA plan 111650)2026-04-132031-04-121,655
Gilmanton townTownApproved, expires 2030-09-03Town of Gilmanton, New Hampshire Hazard Mitigation Plan Update, 2025 (FEMA plan 111004)2025-09-042030-09-031,434
Meredith townTownApproved, expires 2029-12-08Town of Meredith, New Hampshire Hazard Mitigation Plan Update, 2024 (FEMA plan 108831)2024-12-092029-12-081,165
New Hampton townTownApproved, expires 2029-03-14New Hampton Hazard Mitigation Plan Update 2023 (FEMA plan 109303)2024-03-152029-03-14896
Sanbornton townTownApproved, expires 2031-03-31Town of Sanbornton, NH Hazard Mitigation Plan 2025 (FEMA plan 111468)2026-04-012031-03-311,643
Tilton townTownApproved, expires 2029-04-02Town of Tilton, New Hampshire Hazard Mitigation Plan Update, 2023 (FEMA plan 109239)2024-04-032029-04-02915

State plan status and tribal plans in this state: see the state page.

What the packet contains

Sections in FEMA checklist order; each heading names the review item its tables support. Full tables are in the downloads above.

Supports FEMA checklist item B1-a Hazard identification

15 of the 18 National Risk Index hazards apply here.

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: coastal flooding, tsunami and volcanic activity. That is the evidence for leaving them out of the plan.

Highest expected annual loss (NRI, modeled): Inland Flooding, Lightning and Hurricane.

Not covered by NRI (local data needed): dam failure (incl. upstream dams); levee failure; flash flood as its own subtype; ice jams; debris flows; erosion (riverine and coastal); land subsidence and sinkholes; expansive soils.

The state hazard mitigation plan also lists hazards for this county; FEMA asks the plan to explain any hazard it leaves out.

Supports FEMA checklist item B1-b Hazard location

  • Avalanche, Earthquake, Hurricane, Landslide, Tornado and Wildfire: Varies within the county: the census tracts with the highest National Risk Index rating for this hazard are listed. FEMA's Resilience Analysis and Planning Tool (RAPT) maps the National Risk Index for every tract (https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool).
  • Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather: Affects the whole county; national data give no location within it.
  • Inland Flooding: The FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.

Supports FEMA checklist item B1-c Hazard extent

Storm Events records for 13 of the 20 NOAA event-type groups mapped to the 18 hazards, with the scale, observed range and worst recorded event for each; the others say which local data are needed.

  • Hail: 2 in hail, 1970-07-12
  • Thunderstorm Wind: 91 kt (105 mph) estimated gust, Thunderstorm Wind, 2025-07-20
  • Tornado: F2 tornado, 1972-07-03, 1 mi path length (whole path, pre-1996), 40 yd wide, $25,000 property; crops not recorded (1972 dollars), 7 direct injuries

Supports FEMA checklist item B1-d Previous occurrences

Federal declarations for this area: 30 declarations covering 23 separate hazard incidents counted in this packet; each with type, dates and county Public Assistance dollars.

No county-level plan row in FEMA data, so there is no approval date to count from.

1 statewide declaration listed separately.

Hazards with no Storm Events record and no federal declaration are stated as such (7 of 18).

Storm Events history: 582 records (notable ones in the PDF, all of them in the Excel file).

Supports FEMA checklist item B1-e Probability of future events

FEMA annualized frequency (modeled) for each hazard, with a descriptor from a scale defined in the packet.

  • Highly likely: Hail, Lightning and Winter Weather
  • Likely: Cold Wave, Drought, Inland Flooding, Landslide and Strong Wind
  • Possible: Avalanche, Heat Wave, Hurricane, Ice Storm and Tornado

Historical frequency by intensity band (tornado, hail, wind): 9 bands from Storm Events.

Supports FEMA checklist item B1-f Hazards that vary across jurisdictions

Range of census tract risk scores within the area for 15 of the 18 hazards (18 tracts; rated tracts only).

11 jurisdictions: plan clock, repeat-flood count, Public Assistance dollars and event records naming the place (starting figures from federal data).

County Public Assistance in B1-d also includes applicants filed under the county that are not jurisdictions in this plan (for example state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.

Supports FEMA checklist items B2-a and B2-b Vulnerability and potential impacts

The packet's table gives county-level starting figures; the plan describes impacts for each jurisdiction and its own assets.

No county-level plan row in FEMA data, so there is no approval date to count from.

Local data needed

To gather:

  • Critical facilities and lifelines per hazard
  • A problem statement per jurisdiction per hazard
  • Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
  • Future assets

Supports FEMA checklist item B2-a Vulnerability (county context)

Population 63,653; building value $15,576,414,425 and agriculture value $9,806,798 (total, not at risk).

National Risk Index rating Relatively Low; social vulnerability Very Low; community resilience Very High.

Supports FEMA checklist item B2-c Repetitive loss properties

Repetitive-loss properties, FMA definition (44 CFR 77.2): 0 repetitive loss, 4 severe repetitive loss. NFIP insurance definition: 15 and 4.

Mitigated 0; insured 1; NFIP data as of 2026-08-02. Counts by occupancy group and for each jurisdiction are in the packet.

Releases

Each release is dated; this is release 2026-10. It was first published 2026-09-30; its files do not change. Later releases will be listed here with what changed between them. All releases.

Cite this

Hazard Plain (2026). Belknap County, NH: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 33001). Automated baseline. https://hazardplain.org/nh/33001/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Source citations for the plan's bibliography (8)

How this packet is built: methods and sources