William Trails property tax rate
Unincorporated Willis ISD area, Montgomery County, TX · No MUD mapped · School: Willis ISD
Units every section pays
| Taxing unit | Rate per $100 | Tax year · source |
|---|---|---|
| Montgomery County | 0.386 | 2026 · County Tax Office |
| Montgomery County Hospital District | 0.0458 | 2026 · County Tax Office |
| Lone Star College System | 0.1058 | 2026 · County Tax Office |
| Willis ISD | 0.9998 note | 2026 · County Tax Office |
| Montgomery County ESD 1 | 0.1 | 2026 · County Tax Office |
These 5 units apply to all 4 sections. The rest differ by section — see the comparison below.
One or more units had not posted a 2026 rate when this page was built, so their most recent rate is used and its year is shown.
Compare sections
4 sections fall into 2 different tax combinations. Find the section on the property's MCAD record (the legal description) to know which row applies.
| Sections | Units that differ | Combined | Tax on $400k | |
|---|---|---|---|---|
| Group 1 01, 02, 04 | South East Regional Management District 1.23 | 2.8674% | $11,470 | Calculator |
| Group 2 01 Partial Replat 01 | — | 1.6374% | $6,550 | Calculator |
Not in the combined rate: PID assessments, TIRZ (which do not add a tax), and HOA dues.
Checked against parcel records: South East Regional Management District added (100% of parcels list it).
Across verified groups here, the gap between the lowest (1.6374%) and highest (2.8674%) combination is $4,920 a year on a $400,000 home. The county median is 1.91%.
Within Unincorporated Willis ISD area, developments range from 1.6374% (Afton Park) to 3.0874% (Ridgeland Hills). See all 180.
Estimated yearly property tax
| Taxable value (yearly, no exemptions) | Group 1 | Group 2 |
|---|---|---|
| $300,000 | $8,602 | $4,912 |
| $400,000 | $11,470 | $6,550 |
| $500,000 | $14,337 | $8,187 |
| $750,000 | $21,506 | $12,280 |
| $400,000 w/ school homestead* | $10,070 | $5,150 |
*Applies only the mandatory $140,000 school-district homestead exemption (Texas Tax Code §11.13(b)). Other units may offer optional homestead exemptions plus over-65/disabled exemptions, so a homestead bill is often lower. Taxable value is the appraised value, which can differ from the price paid.
Pick a group above to open the monthly cost calculator →
What's here
444 parcels: 151 single-family homes; 292 vacant lots; 1 exempt (common areas, public).
Residential buildings with a recorded year built: 151; built 2024–2025 (average 2024); average main living area about 1,000 sq ft.
A large share of vacant lots usually means a development is still building out; utility district rates in new districts often change as homes are added.
Source: MCAD parcel records via Montgomery County GIS parcel layer (property-type codes and improvement data), retrieved Oct. 29, 2026. Counts only; no owner data used.
Sections (4)
| Section | Plat name | MCAD code | Group | Confidence | Parcels |
|---|---|---|---|---|---|
| 01 | William Trails 01 | S955900 | Group 1 | high | 146 |
| 01 Partial Replat 01 | William Trails 01 Partial Replat 01 | S955990 | Group 2 | high | 1 |
| 02 | William Trails 02 | S955902 | Group 1 | high | 266 |
| 04 | William Trails 04 | S955904 | Group 1 | high | 31 |
Rates: Montgomery County Tax Office and Texas Comptroller (plus official district documents where noted in data notes). Districts: Montgomery County GIS, checked against MCAD parcel records. See sources & method.
Informational only. This site is not tax, legal, financial, or real estate advice, and it is not affiliated with Montgomery County, the Montgomery Central Appraisal District, the Montgomery County Tax Office, or any other government body. Rates are nominal (before exemptions) and come from public sources that can be wrong or out of date. District boundaries here are approximate. Always verify a specific property on the MCAD property search and confirm current rates with the Montgomery County Tax Office.