Independent information service · not a government agency
Harris County, Texas — water emergency guide

Water damage in Harris County

Not affiliated with Harris County, any city government, FEMA, TDI, or any government agency.

Leave and call for emergency help FIRST if any of these:

None of these? Continue below.

Safety information only: Conditions vary. This guidance is not a substitute for instructions from 911, utilities, public-health officials, licensed professionals, your insurer, or your policy. If anyone may be in danger, leave the area and call 911. Do not take any step you cannot perform safely.

What this means in Harris County

Between 2020 and 2024, 1,510 flood-insurance claims in Harris County recorded a building payment. 1,023 of them — 68% — came from losses in 2024. That works out to 0.8 claims per 1,000 homes over those years — 34th highest of 254 Texas counties. About 99 of every 1,000 homes here carry a flood-insurance policy — 11th highest of 254 Texas counties. Flood cover is far more common in Harris County than in most of Texas, which usually reflects mapped flood zones and lender requirements rather than an individual property's exposure.

What's the source? Tap one — the right help depends on it.

Do this first: shut off your home's main water supply if you can reach it safely.Right help: a plumber to stop the source, plus water removal if flooding is significant. Full steps → statewide guide
Do this first: do not get on the roof — move valuables clear and catch drips from inside.Right help: emergency roof covering (a tarp) first, then water cleanup inside. Full steps → statewide guide
Do this first: stop using sinks, toilets, and drains, and keep people and pets away from the water.Right help: a plumber, possibly the utility, and specialized cleanup — the water is contaminated. Full steps → statewide guide
Do this first: do not walk or drive into moving water.Right help: stay out of moving water; water removal once entry stops. Describe the observed source and events accurately to your insurer; do not speculate. Full steps → statewide guide
Do this first: notify your landlord, property manager, or HOA now and photograph everything.Responsibility and coverage depend on the cause, the policies, and any lease or association documents. Notify the appropriate owner, manager, association, and insurer, and document the damage before authorizing non-emergency repairs. Renters: your policy may cover belongings and temporary housing after a covered loss. Full steps → statewide guide
Do this first: shut off your main water cutoff if you can reach it safely.Not sure? Shut the private cutoff if safe and describe what you see when you call — a pro can triage by phone. Full steps → statewide guide
General information only — not professional advice; see the safety notice above.
sources & methodology · how this site works

You are not alone. First make the area safe. Then stop the source if you can do so without entering water or touching wet electrical equipment.

Local data through: NFIP claims 2026-05 · NOAA 2026-03 · FEMA declarations 2026-07

Harris County flood context

Four separately-sourced, area-level indicators — not a combined score, not a property-specific risk estimate, and NOT a measure of pipe/appliance/roof losses (no public dataset measures those directly).

12
water-related federal disaster declarations naming Harris County since 2015 · method
4 floods · 4 hurricanes · 2 ice storms · 2 severe storms
FEMA Disaster Declarations Summaries
34 event records
flash floods recorded in the county, 2020 through 2026-03 · method
NOAA Storm Events Database
190,470
99 per 1,000 homes — 11th highest of 254 Texas counties (state median 5.5) · method
flood insurance policies in force in the county (as of July 2026) · method
FEMA NFIP policies
1,542
0.8 per 1,000 homes (2020–2024) — 34th highest of 254 Texas counties · method
flood-insurance claims with dates of loss 2020–2025 and recorded building payments · method
FEMA NFIP claims, claims with dates of loss through May 2026

Recent water-related disaster declarations — Harris County

FEMA disaster and emergency declarations whose incident type is explicitly mapped to residential water damage — including flood, tropical, severe-storm and freeze incidents — naming this county, most recent first. Major disaster (DR) and emergency (EM) declarations are labelled distinctly; all are historical records.

How this is sourced & what assistance status means

When flash floods happen in Harris County

Recorded flash-flood reports in Harris County cluster in May and September (NOAA Storm Events, 34 event records by begin month since 2020).

Water utilities serving Harris County

Largest active community water systems by population served. Your utility's emergency line is printed on your water bill — for supply leaks and meter emergencies, that number beats any directory.

How population served is sourced (EPA SDWIS)

Source: EPA Safe Drinking Water Information System (SDWIS), a federal database of public water systems, refreshed quarterly. County emergency management: Texas counties must maintain or participate in an emergency-management program; use the TDEM regional directory for state field contacts and verify the appropriate local contact.

Flood-insurance claims with building payments, by year of loss — Harris County

Claims with a recorded building payment > $0 (count), by year of loss · complete loss-years plus current-year to date · all values in the table below

1024768512256avg per loss year 2020–2025 · 257202020212022202320242025
Claims with a recorded building payment > $0, Harris County, by year of loss (count)
YearClaims (count)Median recorded building payment (nominal $)
2020184$12,400
2021129$14,800
202286$18,800
202388$20,200
20241023$23,900
2025 (provisional)32$5,200
2026 YTD (May)13—

Claims for 2025 are still being filed and paid, so that year will keep rising as more are recorded. Our claims data runs through May 2026. Comparisons with other counties on this page use 2020–2024, where the record has settled.

The whole flood-claim record — Harris County

The chart above covers recent years. Over the whole NFIP record for Harris County — 1978 to 2026 — the totals are much larger. The worst single year on record is 2017, with 42,005 paid claims — 31% of everything on record for the county.

135,381
flood-insurance claims with a recorded building payment, 1978–2026 · method
$6.8 billion
total recorded building payments over the same years (nominal dollars — not adjusted for inflation) · method
19801990200020102020
Year-by-year claim counts, whole record
YearClaims (count)
1978106
19796,417
1980352
19813,595
1982251
19834,573
1984917
1985385
1986124
1987336
198821
19894,651
199043
1991224
19922,440
1993317
19942,906
1995187
1996213
19971,247
19983,128
1999456
2000152
200120,015
20022,469
20031,256
2004212
2005167
20062,125
20071,154
20088,673
20094,239
2010186
201112
2012699
2013325
2014211
20155,874
20166,936
201742,005
2018111
20194,116
2020184
2021129
202286
202388
20241,023
2025 (provisional)32
202613

Every year with at least one paid claim is listed. Dollar totals sum payments made across 49 years and are nominal dollars — not adjusted for inflation — a 1979 payment and a 2024 payment are added together as printed. Source: FEMA NFIP redacted claims.

Historical NFIP flood-claim outcomes — Harris County

Not a forecast for your loss. These are flood-insurance (NFIP) building claims only — a burst pipe or appliance leak is usually a homeowners-policy matter, and outcomes depend on your coverage, cause, and documentation.

$21,800
from 1,316 claims
median recorded building payment, claims with dates of loss in the last 5 years · method
$7k – $52k
middle half of paid claims (25th–75th pct) · method

City-level breakdowns, share-paid rates, and time-to-payment will publish only when claim-level geography and full methodology (numerators, denominators, status filters, code) are finalized and reproducible.

After the immediate emergency

Once the area is safe and the water is stopped, the full step-by-step lives on our statewide guide so it stays in one authoritative place:

How Harris County compares

Harris County ranks 11th highest of 254 Texas counties for how many homes carry flood insurance, at 99 per 1,000 against a state median of 5.5. The closest Texas county we publish on that measure is Cameron County (97 per 1,000), which makes it the most useful single page to read beside this one. For every county and the counties we do not publish, see the Texas water damage guide.

Sources & methodology

Download this county's figures as data.json, or the complete dataset at The Texas Water Damage Ledger.

Every statistic on this page links to its methodology record (source dataset, formula, filters, date semantics, and minimum sample) — follow the "method" link on each figure. Estimates are labeled. County figures are NOT allocated to cities. This is general information only and not professional advice.