Property taxes
2.25%
Total 2025 rate. A typical home pays about $4,347 a year with a homestead exemption.
Katy, TX · Harris County (unincorporated)
Castle Rock
Own a home in Castle Rock? See what it would list for
- 564single-family homes, built 2003–2015
- 2,225 sq fttypical (median) home size
- 2.25%total property tax rate (2025)
- Katy ISD0 of 3 zoned campuses rated A by TEA (2026)
- 0.0%of homes in FEMA's 100-year floodplain
The neighborhood
Living in Castle Rock
Homes: 564 single-family homes in ZIP 77449, built 2003–2015.
Key figures
Taxes, schools and flood risk, in brief
Utility district
1 MUD
Water, sewer and drainage come from Castlewood MUD. Its tax is part of the total rate.
Rate, debt and history →Schools · Katy ISD
- Franz ElementaryC
- Morton Ranch Junior HighB
- Morton Ranch HighB
TEA 2026 ratings. Zones can change; verify an address with the district.
Flood risk
0.0%
of homes are in FEMA's 100-year floodplain, where lenders require flood insurance.
Free checklist
Selling in Castle Rock: the prep checklist
The MUD notice for your section, HOA and disclosure paperwork, flood answers and what inspectors will check, specific to Castle Rock. We'll email it to you.
Housing
The homes
564 single-family homes, built 2003–2015; half were finished by 2006. Most are 1,604–2,845 square feet on lots of about 5,816 square feet.
Sources: Harris Central Appraisal District, real property roll (2026 roll). Retrieved Oct 9, 2026.
Nearby
Other neighborhoods near Castle Rock
- Parkway WestKaty · 0.4 mi
- Typical size
- 1,160 sq ft
- Built
- 1982–1983
- Tax rate from
- 2.25%
- Schools
- Katy ISD
- WestgreenKaty · 0.5 mi
- Typical size
- 1,317 sq ft
- Built
- 1980–1992
- Tax rate from
- 2.76%
- Schools
- Katy ISD
- SundownKaty · 1.0 mi
- Typical size
- 1,722 sq ft
- Built
- 1980–1983
- Tax rate from
- 2.17%
- Schools
- Katy ISD
- Williamsburg SettlementKaty · 1.2 mi
- Typical size
- 2,408 sq ft
- Built
- 1978–1984
- Tax rate from
- 2.28%
- Schools
- Katy ISD
- Morton RanchKaty · 1.2 mi
- Typical size
- 2,160 sq ft
- Built
- 2005–2012
- Tax rate from
- 2.57%
- Schools
- Katy ISD
- Sundown GlenKaty · 1.3 mi
- Typical size
- 1,808 sq ft
- Built
- 1984–1998
- Tax rate from
- 2.66%
- Schools
- Katy ISD
Free market report
What did homes in Katy just sell for?
See what your neighbors' homes actually sold for, straight from MLS data and refreshed every couple of days. Pick an area and we'll show it to you right away.
- What homes near you just sold for: the actual sale prices
- New listings and what they're asking
- Pending sales: what went under contract, and how fast
- Price drops on homes still for sale
- Market trends: median prices, days on market and inventory over time
Thinking of selling? The report is a good start. For a price on your own home, ask for a free market analysis.
Selling
Selling a home in Castle Rock
What to have ready
- The MUD notice for your district: how it works
- Seller's disclosure, including floodplain status and any flood claims
- Ages of roof, HVAC and water heater: buyers' inspectors will ask
What would your Castle Rock home list for?
A broker-prepared market analysis built from recent Castle Rock sales, adjusted for your home. No obligation.
Get a Free Market Analysis Run your net sheet
Or call us: (281) 606-0863.
FAQ
Castle Rock FAQ
What is the property tax rate in Castle Rock?
The 2025 total rate is 2.25% of taxable value.
What MUD is Castle Rock in?
Castle Rock is served by Castlewood MUD (100% of homes). Check a specific address on HCAD.
What schools serve Castle Rock?
Castle Rock is in Katy ISD. Zoned campuses: Franz, Morton Ranch, Morton Ranch. Zones can change; verify an address with the district.
Is Castle Rock in a flood zone?
On FEMA's effective maps, 0.0% of homes are in the 100-year floodplain. Check an individual address on FEMA's map.
Thinking About Selling in Castle Rock?
We know the taxes, MUDs and schools here, and we stay on your sale after it's listed.
Spot an error in this data? Tell us and we'll fix it.
Tax rates, districts, schools and flood maps change. Tell us what's wrong and where you saw the right information, and we'll email you once it's corrected. We won't add you to any mailing list.