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Flood Figures

ZIP 77511 flood insurance data

Computed from OpenFEMA FIMA NFIP Redacted Policies (v2) and OpenFEMA FIMA NFIP Redacted Claims (v2). Policy data as of June 1, 2026; claims recorded through June 1, 2026.

As of June 1, 2026, 4,049 NFIP flood insurance policies are in force in ZIP 77511 (Alvin, TX), with 3,653 flood claims recorded since 1978.

Policies & premiums

Policies in force
4,049
Median annual premium
$821
premium only
Median annual cost
$1,056
premium + fees & surcharges
Mean annual premium
$891
premium only
Policies in SFHA zones
51.7%
zones A, AE, AH, AO, V, VE
Building coverage in force
$887,996,000
Contents coverage in force
$311,199,000

"Premium" is the policy premium alone; "cost" adds federal fees and surcharges. In-force counts are an approximation derived from policy effective, termination, and cancellation dates — see methodology.

Flood zones of insured properties

NFIP policies in ZIP 77511 by rated flood zone
Policies Share Share bar
X 1,942 48.0%
AE 1,087 26.8%
AO 963 23.8%
A 24 0.6%
AOB 19 0.5%
C 9 0.2%
B 3 0.1%
A02 2 0.0%

Distribution of insured properties by the flood zone used in their policy rating — not a map of land area. Numbered zones (A1–A30, V1–V30) and Zones B and C appear on older FEMA map panels; B and C correspond to today's shaded and unshaded Zone X.

What the policies cover

NFIP policies in ZIP 77511 by occupancy type
Policies Share Share bar
Single-family homes 3,537 87.4%
Mobile homes 245 6.1%
Non-residential buildings 177 4.4%
Multi-unit buildings 84 2.1%
Units in multi-unit buildings 6 0.1%

Claims history since 1978

Claims since 1978
3,653
Total paid
$104,242,989
Paid on buildings
$79,033,975
Paid on contents
$24,908,714
NFIP claims filed per year in ZIP 77511, 1978–2026. Rust bars mark the top loss years by dollars paid (also listed below).
Claims by year (data table)
YearClaimsPaid
1978 1 $800
1979 1,364 $18,974,437
1980 6 $1,402
1981 67 $181,327
1982 3 $2,809
1983 73 $136,419
1984 16 $65,320
1985 5 $15,438
1986 5 $3,914
1987 2 $3,881
1988 2 $2,165
1989 257 $3,591,152
1990 10 $63,816
1992 15 $79,955
1993 8 $9,742
1994 47 $658,835
1995 11 $92,572
1996 3 $9,897
1997 24 $153,135
1998 79 $731,246
2000 1 $0
2001 89 $1,799,291
2002 83 $1,079,848
2003 4 $50,729
2004 1 $0
2005 5 $22,532
2006 63 $1,840,435
2007 13 $97,198
2008 213 $2,320,775
2009 169 $4,566,691
2010 10 $285,254
2012 17 $103,487
2013 7 $122,276
2015 8 $29,823
2016 2 $90,185
2017 891 $65,829,966
2018 4 $29,542
2019 16 $122,418
2020 2 $13,617
2021 6 $0
2022 1 $0
2024 43 $1,060,662
2025 1 $0
2026 6 $0

Years with no recorded claims are omitted from the table.

Top loss years by dollars paid

Year Claims Paid
2017 891 $65,829,966
1979 1,364 $18,974,437
2009 169 $4,566,691

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