taxes Property Tax Assistance

2025 Confidence Interval Detail

Harris County
101-912/Houston 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 36,384,323,923 0.9701 37,505,745,720 469 159,290 5,451,281,677
A 3 35,565,200,042 0.9985 35,618,627,984 492 80,698 14,246,424,042
A 4 36,975,068,047 0.9870 37,462,075,022 497 42,253 105,539,234,248
A 5 41,194,206,549 0.9817 41,962,113,221 237 17,634 1,456,757,213,802
B 2 8,597,179,524 0.9711 8,853,032,153 19 3,461 1,326,375,853,746
B 3 7,952,827,124 1.0517 7,561,878,030 12 220 184,006,422,324,577
B 4 9,374,949,917 0.9775 9,590,741,603 10 147 115,827,206,355,686
B 5 8,928,053,871 1.0234 8,723,914,277 9 82 1,979,068,138,578,590
C1 2 1,624,385,641 0.8410 1,931,493,033 51 20,968 2,337,853,349
C1 3 1,538,937,694 0.8417 1,828,368,414 35 6,446 28,759,377,234
C1 4 1,596,654,499 1.0041 1,590,134,946 12 2,156 212,652,295,298
C1 5 1,603,242,023 0.9635 1,663,977,190 11 410 1,921,588,143,814
E 0 342,124,413 1.0238 334,171,140 11 506 1,361,483,696,206
F1 2 16,413,205,108 0.7579 21,656,161,905 29 11,232 2,819,683,192,484
F1 3 16,942,299,193 0.9240 18,335,821,637 15 2,358 26,269,699,491,814
F1 4 16,166,361,078 1.0329 15,651,429,062 14 522 596,092,422,194,228
F1 5 15,711,510,493 0.9731 16,145,833,412 12 85 15,049,507,852,903,580
L1 2 2,936,640,328 1.2043 2,438,462,450 11 12,516 67,170,234,911
L1 3 3,020,209,176 1.0177 2,967,681,218 10 1,511 1,870,049,525,400
L1 4 3,028,406,485 0.9968 3,038,128,496 10 381 22,037,632,289,984
L1 5 2,793,901,275 1.0507 2,659,085,633 9 82 202,341,001,530,448
Random Totals: 268,689,686,403 277,518,876,546 1,975 362,958
CATG D1 EXCEPTION VALUES: 353,017 319,489
CATG J EXCEPTION VALUES: 1,560,801,130 1,657,913,261
Total Test Values 270,250,840,550 279,177,109,296

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 13,958,855,465

Confidence Interval Values(5)

Local Test Value: 270,250,840,550 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 265,218,253,831 (State Test Value minus Margin of Error Percent)
State Upper Limit: 293,135,964,761 (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