Water damage in Collin County
Not affiliated with Collin County, any city government, FEMA, TDI, or any government agency.
Leave and call for emergency help FIRST if any of these:
- Ceiling sagging or bulging, or any structural movement → get out from under it; leave if spreading
- Gas odor → leave now, call your gas utility from outside
- Sparking, energized water, or a wet breaker panel → do not touch; call the electric utility or 911
- Large-scale sewage flooding → keep everyone (especially kids, pets, and medically vulnerable people) away from the water; call emergency services for any immediate medical or life-safety risk — otherwise isolate the area and use the sewer branch 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 Collin County
Between 2020 and 2024, 24 flood-insurance claims in Collin County recorded a building payment. 8 of them — 33% — came from losses in 2024. That works out to 0.1 claims per 1,000 homes over those years — 120th highest of 254 Texas counties. About 3.4 of every 1,000 homes here carry a flood-insurance policy — 164th highest of 254 Texas counties. Relatively few homes in Collin County carry flood cover compared with the rest of Texas. Standard homeowners policies exclude flood damage, which is why the National Flood Insurance Program exists as a separate policy.
What's the source? Tap one — the right help depends on it.
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
Collin 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).
Recent water-related disaster declarations — Collin 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.
- FEMA DR-4781 (major disaster declaration) — Flood, declared 2024-05-17. Incident Apr 26, 2024 to Jun 5, 2024. Individual/Household Assistance approved for this county. Last assistance filing date Aug 15, 2024 — historical, not currently open for applications. FEMA disaster record
- FEMA DR-4586 (major disaster declaration) — Severe Ice Storm, declared 2021-02-19. Incident Feb 11, 2021 to Feb 21, 2021. Individual/Household Assistance approved for this county. Last assistance filing date May 20, 2021 — historical, not currently open for applications. FEMA disaster record
- FEMA EM-3554 (emergency declaration) — Severe Ice Storm, declared 2021-02-14. Incident Feb 11, 2021 to Feb 21, 2021. Individual/Household Assistance not approved for this county. FEMA disaster record
- FEMA EM-3294 (emergency declaration) — Hurricane, declared 2008-09-10. Incident Sep 7, 2008 to Sep 26, 2008. Individual/Household Assistance not approved for this county. FEMA disaster record
- FEMA EM-3290 (emergency declaration) — Hurricane, declared 2008-08-29. Incident Aug 27, 2008 to Sep 7, 2008. Individual/Household Assistance not approved for this county. FEMA disaster record
When flash floods happen in Collin County
Recorded flash-flood reports in Collin County cluster in April and May (NOAA Storm Events, 20 event records by begin month since 2020).
Water utilities serving Collin 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.
- CITY OF PLANO — about 292,059 people served · EPA-registered contact: 972-941-7107 (verified 2026Q3)
- CITY OF FRISCO — about 231,910 people served · EPA-registered contact: 972-292-5050 (verified 2026Q3)
- CITY OF MCKINNEY — about 224,043 people served · EPA-registered contact: 972-547-7507 (verified 2026Q3)
- CITY OF ALLEN — about 113,746 people served · EPA-registered contact: 214-509-4120 (verified 2026Q3)
- CITY OF CELINA — about 52,701 people served · EPA-registered contact: 972-382-2682 (verified 2026Q3)
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 — Collin 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
| Year | Claims (count) | Median recorded building payment (nominal $) |
|---|---|---|
| 2020 | 7 | — |
| 2021 | 5 | — |
| 2022 | 4 | — |
| 2023 | 0 | — |
| 2024 | 8 | — |
| 2025 (provisional) | 3 | — |
| 2026 YTD (May) | 1 | — |
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 — Collin County
The chart above covers recent years. Over the whole NFIP record for Collin County — 1979 to 2026 — the totals are much larger.
Year-by-year claim counts, whole record
| Year | Claims (count) |
|---|---|
| 1979 | 6 |
| 1980 | 2 |
| 1981 | 6 |
| 1982 | 20 |
| 1983 | 4 |
| 1984 | 1 |
| 1985 | 3 |
| 1986 | 5 |
| 1987 | 2 |
| 1989 | 10 |
| 1990 | 19 |
| 1991 | 18 |
| 1992 | 1 |
| 1993 | 1 |
| 1994 | 4 |
| 1995 | 3 |
| 1996 | 4 |
| 1997 | 2 |
| 1998 | 7 |
| 2000 | 1 |
| 2001 | 4 |
| 2002 | 4 |
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 2 |
| 2006 | 5 |
| 2007 | 1 |
| 2008 | 8 |
| 2009 | 3 |
| 2010 | 3 |
| 2012 | 3 |
| 2015 | 32 |
| 2016 | 6 |
| 2017 | 2 |
| 2018 | 14 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 4 |
| 2024 | 8 |
| 2025 (provisional) | 3 |
| 2026 | 1 |
Every year with at least one paid claim is listed. Dollar totals sum payments made across 48 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.
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 Collin County compares
Collin County ranks 164th highest of 254 Texas counties for how many homes carry flood insurance, at 3.4 per 1,000 against a state median of 5.5. The closest Texas county we publish on that measure is Smith County (4.5 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
- [1] FEMA NFIP Redacted Claims v2 — snapshot July 2026 · Collin County · building claims, payment > $0 · full field list, filters, and query: methodology page
- [2] FEMA Disaster Declarations Summaries v2 — county-designated declarations since 2015
- [3] NOAA Storm Events Database — flash-flood events, Collin County, Jan 2020 through 2026-03
- [4] FEMA NFIP Redacted Policies v2 — policies in force as of the 2026-07-20 snapshot (policy_count sum)
- [5] EPA — dry within 24–48 hours to reduce chance of mold growth · TDI — claim handling, CLUE, deductible law · your city water utility / 311 — shutoff guidance
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.