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Northgrove property tax rate

Unincorporated Magnolia ISD area, Montgomery County, TX · MUD: Montgomery County MUD 137 · School: Magnolia ISD

Combined nominal rate2.6864%per $100 of value, before exemptions

Est. yearly tax on $400k$10,746no exemptions

Mapped plats20 sectionshigh confidence

May have an additional district or assessment. Some sections here had too few parcel records to cross-check, so a management district, defined area, or PID could apply that is not shown. Check the address on MCAD.

Check a specific address: districts here are mapped from county GIS boundaries and checked against MCAD parcel records, but individual lots can still differ, and PID assessments and HOA dues are not in the rate. Look up the exact address on the official MCAD property search; the property record lists every unit that taxes it.

Taxing units and rates

All 20 mapped sections share the same taxing units.

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
Magnolia ISD	0.9325	2026 · County Tax Office
Montgomery County MUD 137	1.12	2025 · County Tax Office
Montgomery County ESD 10	0.0963	2026 · County Tax Office
Combined	2.6864%

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.

Not in the combined rate: PID assessments, TIRZ (which do not add a tax), and HOA dues.

This combined rate is higher than about 84% of the 6,100 fully verified subdivision sections in Montgomery County, and 0.77 percentage points above the county median of 1.91% — about $3,098 a year more on a $400,000 home.

Within Unincorporated Magnolia ISD area, developments range from 1.5664% (7301 FM 1488 Development) to 3.0664% (Colton). See all 338.

Estimated yearly property tax

Taxable value	Yearly, no exemptions	Per month	Yearly w/ school homestead*
$300,000	$8,059	$672	$6,754
$400,000	$10,746	$895	$9,440
$500,000	$13,432	$1,119	$12,126
$750,000	$20,148	$1,679	$18,842

*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.

Estimate the true monthly cost of a home here →

What's here

1,083 parcels: 997 single-family homes; 11 vacant lots; 6 rural/acreage; 1 commercial/industrial; 67 exempt (common areas, public); 1 other (utility, personal, minerals).

Residential buildings with a recorded year built: 997; built 2015–2025 (average 2021); average main living area about 2,940 sq ft.

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 (20)

Section	Plat name	MCAD code	Combined	Confidence	Parcels
01	Northgrove 01	S740200	2.6864%	high	5
02	Northgrove 02	S740202	2.6864%	high	51
03	Northgrove 03	S740203	2.6864%	high	85
04	Northgrove 04	S740204	2.6864%	high	28
05	Northgrove 05	S740205	2.6864%	high	39
05 Partial Replat 2	Northgrove 05 Partial Replat 2	S740251	2.6864%	high	19
06	Northgrove 06	S740206	2.6864%	high	6
07	Northgrove 07	S740207	2.6864%	high	76
08	Northgrove 08	S740208	2.6864%	high	136
09	Northgrove 09	S740209	2.6864%	high	94
11	Northgrove 11	S740211	2.6864%	high	1
12	Northgrove 12	S740212	2.6864%	high	75
13	Northgrove 13	S740213	2.6864%	high	34
14	Northgrove 14	S740214	2.6864%	high	82
15	Northgrove 15	S740215	2.6864%	high	44
16	Northgrove 16	S740216	2.6864%	high	84
17	Northgrove 17	S740217	2.6864%	high	42
18	Northgrove 18	S740218	2.6864%	high	80
19	Northgrove 19	S740219	2.6864%	high	75
20	Northgrove 20	S740220	2.6864%	high	27

Other developments in Montgomery County MUD 137

Northgrove Commercial Tract — 2.6864%

All developments in Montgomery County MUD 137 →

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.