Flood Zones in Kerr County, Texas: The July 2025 Flood and Its Aftermath

What happened on July 4, 2025

Before dawn on July 4, 2025, torrential rain over the Hill Country sent the Guadalupe River rising with extraordinary speed -- reported at roughly 26 feet in about 45 minutes in the hardest-hit stretch. The flash flood struck the river corridor through Hunt, Ingram, and Kerrville, along with several riverside youth camps, during the Independence Day holiday weekend when camp and cabin occupancy was near its seasonal peak. Kerr County was the hardest-hit county in a broader central-Texas flood event: county officials confirmed at least 107 deaths in Kerr County alone, out of a combined multi-county death toll that climbed above 130 as search and identification work continued through July 2025. Camp Mystic, an all-girls Christian summer camp on the South Fork of the Guadalupe, lost at least 25 campers ages 8 to 10 and two 18-year-old counselors, with some reporting also counting the camp's co-executive director among the dead.

This was not the first serious flood on this stretch of the Guadalupe, but the death toll made it the deadliest in the county's recorded history and one of the deadliest flash floods in modern US history. Search-and-recovery operations continued for weeks, and formal identification of victims continued to update the county-level death toll for some time after the event -- treat any single early-response figure as provisional and the later, confirmed county totals as the more reliable reference point.

What the state investigation found: cabins inside the regulatory floodway

State investigators produced a final report on the Camp Mystic disaster describing cascading failures in the lead-up to and during the flood. Among the most consequential, checkable findings reported afterward: the two Camp Mystic cabins where most of the flood's victims were sleeping sat inside the Guadalupe River's regulatory floodway -- the channel and adjacent area reserved to carry floodwater, where new construction is ordinarily the most tightly restricted under standard floodplain rules -- rather than merely within the broader, less-restrictive floodplain. Separate reporting examined how Texas's existing land-use and camp-licensing rules had allowed camps to operate in flood-prone areas along the river for decades without a state-level floodplain-siting restriction specific to sleepaway camps.

A new statewide law changes where a licensed youth camp's cabins can sit

In response, the Texas Legislature passed a package of youth-camp safety legislation -- House Bill 1 and Senate Bill 1 -- that ties a camp's state license directly to floodplain siting. Under the new framework, most licensed sleepaway camps can no longer have cabins located inside a floodplain at all; the law carves out two narrow exceptions, for buildings more than 1,000 feet from a floodway and for floodplain status arising only from proximity to a still body of water not connected to a river or stream. Camps with cabins that remain in a floodplain under one of those exceptions face additional, specific requirements: emergency ladders providing roof access, evacuation routes posted in every cabin, lighted evacuation routes, mandatory staff and camper emergency training, weather radios, redundant internet connectivity to ensure emergency alerts are received, and an audible warning system. For anyone evaluating land tied to an existing or planned youth camp anywhere along the Guadalupe in Kerr County, this new licensing-floodplain link is a direct, material constraint on where camp structures can legally sit -- not a general recommendation but a state-licensing requirement with real teeth.

Kerr County had no flood-warning siren system before 2025 -- that changed in 2026

One of the most-discussed findings in the flood's aftermath was that Kerr County had no outdoor warning siren system on the Guadalupe before July 2025; a former county commissioner told reporters a siren system had been proposed years earlier and not built, and that its absence likely cost lives. In response, Kerr County Commissioners Court unanimously approved an interlocal agreement with the Upper Guadalupe River Authority (UGRA) in January 2026 to build a permanent flood-warning system, alongside a resolution accepting a $1.25 million Texas Water Development Board (TWDB) grant to help fund it. By mid-2026, roughly half a dozen to eight sirens had been installed along the North and South Forks of the Guadalupe River ahead of the 2026 summer season, with the full system -- river-level-triggered public website alerts, sirens, and flashing flood signs -- estimated to cost around $5 million. As of July 2026, UGRA's complete system plan (submitted to TWDB on June 12, 2026) remained under state review, and county officials themselves described the sirens' activation protocol as still "a work in progress." Anyone buying land near the river today should ask Kerr County Emergency Management directly for the current, operational status of the warning system -- not assume the sirens installed in 2026 are yet fully integrated into a tested activation plan.

Litigation and the practical status of riverside camps

Camp Mystic faces multiple wrongful-death lawsuits arising from the flood and, according to reporting in early 2026, was preparing to reopen later that year even as litigation proceeded -- new details about the camp's overnight response continue to surface through that litigation process. For a buyer, the practical takeaway is less about any one camp's legal outcome and more about what it signals for river-corridor land generally: expect continued scrutiny of floodplain siting, likely increased insurance and financing scrutiny for river-adjacent structures, and a real possibility that additional camp-specific or county-specific rules follow as the state investigation and litigation play out further. Confirm the current legal and licensing status of any camp-related property directly rather than relying on this page's snapshot.

What to actually check before buying near the Guadalupe

• Pull the current FEMA Flood Insurance Rate Map (FIRM) status for the specific parcel, and separately ask Kerr County Engineering (830-896-9046, floodplain@kerrcountytx.gov) whether any part of the tract falls inside the regulatory floodway -- the more restrictive designation directly implicated in the Camp Mystic findings.
• If a parcel is inside Kerrville or Ingram city limits, get the floodplain determination from that city's own floodplain administrator instead of the county (Kerrville: 830-258-1410; Ingram: 830-367-5115).
• For any land tied to an existing or planned licensed youth camp, confirm current compliance with the HB 1/SB 1 floodplain-siting and safety requirements directly with the camp's state licensing authority before assuming a cabin's location is compliant.
• Ask Kerr County Emergency Management for the current operational status of the UGRA flood-warning siren system -- installed sirens are not the same as a finalized, tested activation protocol.
• Review flood insurance requirements and costs with a lender or insurer early; expect heightened scrutiny for any structure near the river given the scale of this event.