taxes Property Tax Assistance

2025 Confidence Interval Detail

Tarrant County
061-911/Northwest ISD

Category Summary

(1)
Category 		(1)
Stratum
Number 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 2 2,146,927,368 0.9677 2,218,587,752 150 6,801 2,260,417,095
A 3 2,022,156,140 0.9810 2,061,321,244 150 5,115 2,855,019,556
A 4 2,021,647,947 0.9393 2,152,292,076 148 4,042 9,082,022,720
A 5 2,027,568,767 0.9367 2,164,587,132 109 2,770 63,737,588,433
B 0 846,648,593 1.0929 774,680,751 7 25 1,267,703,655,176,960
C1 2 48,280,554 0.6282 76,855,387 10 211 24,736,246,945
C1 3 45,811,367 0.5792 79,094,211 9 54 536,976,734,774
C1 4 68,466,069 0.6444 106,247,779 8 35 10,774,043,722,409
C1 5 61,795,064 0.9454 65,363,935 7 13 7,444,424,889,388
F1 2 904,580,834 1.0882 831,263,402 10 265 2,183,046,426,089
F1 3 740,443,238 0.9458 782,875,067 10 53 37,486,214,501,849
F1 4 1,211,796,514 0.9861 1,228,877,917 7 33 308,043,420,235,625
F1 5 1,130,782,182 1.0641 1,062,665,334 2 6 315,988,610,937,932,576
L1 2 762,267,415 1.0300 740,065,451 10 83 58,737,160,525,650
L1 3 804,214,059 1.0229 786,209,853 6 18 843,549,711,671,709
L1 4 634,568,307 1.0002 634,441,419 4 5 665,995,175,481,281
Random Totals: 15,477,954,418 15,765,428,710 647 19,529
CATG D1 EXCEPTION VALUES: 834,702 797,462
CATG L1 EXCEPTION VALUES: 3,095,674,958 2,800,800,594
Total Test Values 18,574,464,078 18,567,026,766

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 928,351,338

Confidence Interval Values(5)

Local Test Value: 18,574,464,078 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 17,638,675,428 (State Test Value minus Margin of Error Percent)
State Upper Limit: 19,495,378,104 (State Test Value plus Margin of Error Percent)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values