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Snyder County, PA flood insurance claims history

904 claims under the National Flood Insurance Program have been filed for flood losses in Snyder County since 1978, and FEMA has paid out $12.4M on them. The worst year was 1996 with 227 claims. Snyder County ranks #28 of 67 in Pennsylvania by claim count.

At a glance

  • 13% of claims came from buildings outside FEMA’s high-risk flood zones (B, C or X), where lenders usually do not require flood insurance.
  • 23% of all claims trace to a single event — Tropical Storm Ivan (2004), which paid $3.1M here.
  • Flood claims were filed in 6 of the last 10 years.
  • More flood claims than 59% of the 67 Pennsylvania counties with any claims on file — and more than 2 of its 4 neighbors.
  • ZIP 17870 has the most claims in the county (625, 69%). Check your ZIP →
NFIP claims
904
1978–2021
Total paid
$12.4M
nominal dollars, not inflation-adjusted
Claims paid
88%
794 received a payment
Average payout
$16K
per paid claim
Last 10 years
15
claims 2012 – 2021
Most recent loss
2021-09-23
data as of 2026-09-08

Look up your ZIP code

Pick your ZIP code to see how many insured buildings there filed flood claims, in which years, and how much was paid — and which named floods those claims came from, which a county-wide list cannot tell you. Narrow by year or flood zone too. Everything runs in your browser — nothing you pick is sent anywhere. Have a street address? Run the printable flood check for it →

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Flood claims by year

Peak: 227 claims in 1996

Claims by year of loss, 1978–2021. Spikes line up with named storms and major rain events; quiet years still see claims from local flash flooding.

Biggest flood events in Snyder County

Flood event (FEMA name)ClaimsPaidAvg / claimYear
Flooding (FEMA general label)219$2.7M$12K1996
Tropical Storm Ivan205$3.1M$15K2004
Tropical Storm Lee188$5.1M$27K2011
Flooding (FEMA general label)36$97K$3K1984
Not a named storm16$29K$2K1979
Torrential rain (FEMA general label)2$17K$8K2005
Hurricane Isabel1$0$02003
Flooding (FEMA general label)1$7K$7K1986

74% of claims here fall under these 8 entries. “FEMA general label” groups many separate floods under one name; the rest of the claims have no event name.

Flood zones in Snyder County: which ones the claims came from

Snyder County is not in one flood zone. FEMA draws zones parcel by parcel, so one street can be Zone AE and the next Zone X — there is no single zone for a whole county. What the claim record can tell you is which zones buildings were actually rated in when they flooded, and what each zone has cost here.

High-risk A zones: 749 (83%)Coastal high-risk V zones: 0 (0%)Moderate / low-risk zones (B, C, X): 111 (12%)Zone not recorded: 44 (5%)

The most common zone on Snyder County claims is Zone A1–A30 — 386 of 860 claims with a zone on file (45%). 87% were in a high-risk Special Flood Hazard Area, where a federally backed mortgage makes flood insurance mandatory. Open any zone below for what it means and whether it requires insurance.

Flood zone at ratingClaimsSharePaidAvg / claim
Zone A1–A30 · high risk, insurance required38645%$5.3M$14K
Zone AE · high risk, insurance required29434%$5.4M$18K
Zone A · high risk, insurance required698%$637K$9K
Zone B · moderate / low risk536%$591K$11K
Zone X · moderate / low risk425%$220K$5K
Zone C · moderate / low risk162%$265K$17K

The zone is the one used to rate the policy when the claim was paid, not today’s map — FEMA remaps areas, so a building rated AE in 1995 may sit in a different zone now. AHB and AOB are older AH / AO variants; A1–A30 and V1–V30 are numbered zones from pre-2000 maps. 44 Snyder County claims have no zone recorded and are left out of the shares above. Not sure what the letters mean? Flood zones explained →

What caused the flooding

Cause of damage (as coded by FEMA)ClaimsShare
Stream, river or lake overflow43348%
Accumulation of rainfall or snowmelt29132%
Tidal water overflow (storm surge)12514%
Other causes485%
Not recorded71%

Flood claims by ZIP code in Snyder County

24 ZIP codes in Snyder County have at least one NFIP claim. ZIP codes can cross county lines; this table counts only claims FEMA assigned to Snyder County.

17870625$9.7M69%182021
1784269$413K8%92011
1787643$569K5%122018
1788930$372K3%92014
1783130$564K3%62011
1785324$139K3%62019
1786413$211K1%42011
Not reported13$27K1%51984
1783310$52K1%52019
178628$105K1%31996
178136$5K1%41981
178276$16K1%42010
170455$42K1%42011
178124$2K0%21996
178553$75K0%32004
170863$4K0%32003
170372$65K0%22011
178282$12K0%21996
178502$34K0%21999
178812$20K0%22004
178611$5K0%12004
170801$15K0%11996
178821$1770%11979
178411$3460%11984

Click a column to sort. Click a ZIP to load it in the lookup above.

When does Snyder County flood?

September accounts for the most flood losses (459 claims, 51%). Claims by month of loss:

MonthClaimsShare
January24928%
February546%
March425%
April435%
May40%
June121%
July91%
August233%
September45951%
October30%
November20%
December40%

Year-by-year detail

Year of lossClaimsPaid
20211$8K
20192$2K
20186$68K
20172$0
20143$10K
20121$0
2011199$5.1M
20104$13K
20086$22K
200612$213K
200511$63K
2004211$3.2M
20032$0
199958$605K
19981$0
1996227$2.8M
19941$970
199325$92K
19901$16K
19884$5K
19861$7K
198440$107K
19831$3K
198111$9K
19801$0
197953$121K
197820$19K

Neighboring counties

Snyder County borders 4 areas we cover. Flood risk does not stop at a county line, so it is worth comparing.

NeighborClaimsPaidOutside high-risk
Snyder County (this page)904$12.4M13%
Northumberland County1,721$24.2M22%
Union County927$11.8M11%
Mifflin County487$3.9M35%
Juniata County178$1.1M26%

All 67 Pennsylvania counties → · County and ZIP rankings →

Common questions about flooding in Snyder County

Has Snyder County flooded recently?
Yes — the most recent flood loss with an insurance claim on file was on 2021-09-23, and claims were filed in 6 of the last 10 years (15 claims from 2012 to 2021). FEMA’s data runs to 2026-09-08, so the newest events may not appear yet.
What flood zone is Snyder County in?
There is no single answer — zones are drawn parcel by parcel, so one street can be Zone AE and the next Zone X. Across 860 Snyder County claims with a zone on file, the most common was Zone A1–A30 (45%), and 87% were in a high-risk Special Flood Hazard Area. For one address, look it up on the free flood check or FEMA’s Flood Map Service Center; the zone breakdown above shows what each zone has cost here.
Do I need flood insurance in a low-risk zone here?
Lenders generally require it only in high-risk A and V zones. But 13% of Snyder County’s claims came from moderate- and low-risk zones. Whether to buy coverage is your call — see flood zones explained and check your address on the FEMA Flood Map Service Center.
Can I see whether a specific house has flooded?
Not here. FEMA removes addresses before publishing, so these figures describe areas, never a property. Our guide how to check if a house has flooded lists the questions and records that can tell you about a specific home.
Why might the real number of floods be higher?
Only buildings with National Flood Insurance can file these claims, and most homes are not insured for flood. More on what the counts mean in understanding NFIP claims data.

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About these numbers

Figures are aggregated from FEMA’s OpenFEMA NFIP Redacted Claims dataset (county FIPS 42109, data as of 2026-09-08). They cover only properties that carried National Flood Insurance — most homes do not, and private flood policies are not included — so real flood damage is larger than these counts show. Dollar amounts are as paid, in nominal dollars. Flood zone is the zone used to rate the policy at the time, which may differ from today’s map. FEMA states this dataset is not an official federal report. Use it for background, not for a purchase, insurance or legal decision; for a specific property ask the seller for its flood disclosure or the owner’s NFIP loss history.

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