OUT OFTHE STORMNEWS

Independent insurance-cost data from public records.

County data · July 2026

Flood Insurance Cost by County

Among named counties with at least 100 NFIP policy transactions, Passaic County, New Jersey has the highest July 2026 average premium in this snapshot at $2,453. The table ranks the top 100; the CSV includes every named county row and its policy count.

What we measure: Average premium among policies newly written or renewed that month (NFIP transactions) — not the official in-force average. OpenFEMA transaction data is published on a lag of roughly two months; the latest period shown reflects that lag.

County dataset facts

Reporting period
July 2026

latest complete OpenFEMA month

Named county rows
2,635

included in the downloadable CSV

Ranking threshold
100+

policy transactions in the month

States & territories
53

with at least one named county row

Top 100 counties by average premium

Ranked by average premium, highest first. Only named counties with at least 100 policies newly written or renewed in July 2026 appear in the ranking.

Top U.S. counties by average NFIP flood-insurance premium, July 2026
RankCountyStateAvg premiumAvg total costPolicies
1Passaic CountyNew Jersey$2,453$3,020302
2Dauphin CountyPennsylvania$2,438$3,047139
3Cameron ParishLouisiana$2,422$3,013141
4Lackawanna CountyPennsylvania$2,383$2,966101
5Monroe County — June 2026 profileFlorida$2,371$2,9652,854
6Morris CountyNew Jersey$2,324$2,880294
7Allegheny CountyPennsylvania$2,179$2,740222
8Hartford CountyConnecticut$2,165$2,689126
9Wakulla CountyFlorida$2,105$2,610113
10Middlesex CountyConnecticut$2,105$2,646177
11Sonoma CountyCalifornia$2,098$2,656158
12Franklin CountyFlorida$2,095$2,667245
13Orange CountyNew York$2,094$2,636125
14Marin CountyCalifornia$2,049$2,555499
15Citrus CountyFlorida$2,028$2,529609
16Somerset CountyNew Jersey$1,981$2,473158
17St. Louis CountyMissouri$1,942$2,442265
18Charlotte County — June 2026 profileFlorida$1,915$2,3724,119
19St. Mary ParishLouisiana$1,887$2,392396
20Worcester CountyMassachusetts$1,884$2,398110
21Hinds CountyMississippi$1,882$2,385255
22Kanawha CountyWest Virginia$1,844$2,277101
23Hamilton CountyTennessee$1,834$2,311106
24Montgomery CountyPennsylvania$1,821$2,280233
25New London CountyConnecticut$1,819$2,291324
26Burlington CountyNew Jersey$1,798$2,227249
27Essex CountyNew Jersey$1,745$2,204319
28Middlesex CountyNew Jersey$1,735$2,168260
29Bergen CountyNew Jersey$1,726$2,150818
30Camden CountyNew Jersey$1,723$2,199106
31Lee County — June 2026 profileFlorida$1,717$2,14212,069
32New Haven CountyConnecticut$1,716$2,148696
33San Mateo CountyCalifornia$1,695$2,148351
34Mora CountyNew Mexico$1,694$2,184160
35Washoe CountyNevada$1,684$2,136132
36Kauai CountyHawaii$1,682$2,123215
37Mercer CountyNew Jersey$1,671$2,117157
38Suffolk County — June 2026 profileNew York$1,611$2,0662,449
39Jackson CountyMississippi$1,592$2,0001,196
40Bronx CountyNew York$1,582$2,022190
41Broome CountyNew York$1,566$1,974108
42Jefferson CountyAlabama$1,557$1,986156
43Union CountyNew Jersey$1,556$1,941438
44Buncombe CountyNorth Carolina$1,550$2,000107
45Llano CountyTexas$1,549$2,024107
46Madison CountyIllinois$1,548$1,966116
47Gulf CountyFlorida$1,539$2,006183
48Nassau County — June 2026 profileNew York$1,531$1,9113,472
49Jefferson Davis ParishLouisiana$1,528$1,925117
50Will CountyIllinois$1,527$1,900121
51York CountyMaine$1,526$2,001264
52Terrebonne ParishLouisiana$1,524$1,9121,405
53Bucks CountyPennsylvania$1,519$1,903284
54Barnstable CountyMassachusetts$1,515$1,975756
55Plymouth CountyMassachusetts$1,514$1,922688
56Iberia ParishLouisiana$1,484$1,852397
57Santa Barbara CountyCalifornia$1,470$1,903237
58Santa Cruz CountyCalifornia$1,469$1,870307
59Mobile CountyAlabama$1,468$1,882857
60Georgetown CountySouth Carolina$1,463$1,859997
61Milwaukee CountyWisconsin$1,459$1,870100
62Essex CountyMassachusetts$1,457$1,857702
63Bristol CountyMassachusetts$1,456$1,854288
64Pinellas County — June 2026 profileFlorida$1,452$1,80412,515
65Hillsborough County — June 2026 profileFlorida$1,452$1,8166,844
66Vermilion ParishLouisiana$1,447$1,803492
67Contra Costa CountyCalifornia$1,437$1,834221
68Rockland CountyNew York$1,433$1,824122
69Delaware CountyPennsylvania$1,430$1,822112
70Fairfield CountyConnecticut$1,430$1,7881,536
71Calhoun CountyTexas$1,428$1,874279
72Colleton CountySouth Carolina$1,424$1,885178
73Burnet CountyTexas$1,415$1,840112
74Solano CountyCalifornia$1,406$1,814130
75Westchester CountyNew York$1,401$1,770933
76Plaquemines ParishLouisiana$1,398$1,790551
77Dutchess CountyNew York$1,396$1,775147
78Coconino CountyArizona$1,395$1,812135
79San Miguel CountyNew Mexico$1,386$1,818322
80Guadalupe CountyTexas$1,383$1,769237
81Sevier CountyTennessee$1,366$1,751124
82Snohomish CountyWashington$1,365$1,723149
83Yavapai CountyArizona$1,356$1,734139
84Hernando CountyFlorida$1,348$1,706454
85Calcasieu ParishLouisiana$1,348$1,7031,773
86Harrison CountyMississippi$1,342$1,7301,515
87Lafourche ParishLouisiana$1,340$1,6791,089
88Sarasota County — June 2026 profileFlorida$1,326$1,6666,815
89Clatsop CountyOregon$1,322$1,736112
90New Castle CountyDelaware$1,297$1,640195
91King CountyWashington$1,297$1,663405
92Dougherty CountyGeorgia$1,296$1,700114
93Jefferson CountyKentucky$1,291$1,650283
94Orange CountyTexas$1,287$1,6221,778
95Davidson CountyTennessee$1,285$1,632539
96Los Angeles CountyCalifornia$1,283$1,659908
97Philadelphia CountyPennsylvania$1,279$1,638171
98Ventura CountyCalifornia$1,278$1,664255
99Onondaga CountyNew York$1,271$1,613104
100Matagorda CountyTexas$1,264$1,641347

Download and cite the county data

Download all named county rows (CSV) — the file includes state, county FIPS, premium, total cost, and policy count for the latest period.

Suggested citation

"Flood Insurance Cost by County." Out of the Storm News Flood Insurance Cost Index, July 2026, based on FEMA OpenFEMA NFIP policy transaction data. https://outofthestormnews.com/flood-insurance/costs/counties

How to interpret this ranking

  • Transaction signal, not an in-force average. The rows describe policies that started or renewed in one month.
  • Sample size matters. The public ranking uses a 100-transaction floor; the CSV exposes all named rows so analysts can choose another threshold.
  • Property mix changes. A county average can move when the mix of coastal, inland, residential, and higher-value properties renewing that month changes.
  • NFIP only. Private flood-insurance policies are outside the source dataset.
  • State and county must agree. A source row is excluded from public county output when the first two digits of its county FIPS code conflict with the row’s parent state.

Source: FEMA OpenFEMA NFIP policy transaction data (NFIP Redacted Policies v3). Read the complete methodology.

County flood-insurance cost questions

Which county has the highest flood-insurance cost in July 2026?

Passaic County, New Jersey, has the highest average in this comparison at $2,453 among 302 NFIP policies newly written or renewed in July 2026. The ranking excludes counties with fewer than 100 transactions.

What does the county average measure?

It measures the average premium among NFIP policies newly written or renewed in the reporting month. It is a transaction-based cost signal, not FEMA's official average across every active policy.

Why require at least 100 policy transactions?

A minimum of 100 transactions reduces the chance that a few unusually priced properties dominate the public ranking. The downloadable CSV retains every named county row and its policy count so researchers can apply a different threshold.

Does this county table include private flood insurance?

No. The source is FEMA OpenFEMA NFIP policy-transaction data, so private-market flood policies are not included.

← National and state Flood Insurance Cost Index