taxes Property Tax Assistance

2025 Confidence Interval Detail

Zapata County
253-901/Zapata County 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 2 107,128,267 0.6736 159,038,401 15 2,234 1,021,132,284
A 3 113,893,294 0.9277 122,769,531 15 1,182 1,476,050,203
A 4 111,268,411 0.8809 126,312,193 15 708 1,458,379,606
A 5 131,745,225 0.9031 145,881,104 15 502 56,420,099,890
E 0 106,513,347 0.6216 171,353,518 20 2,082 8,411,881,674
F1 2 19,731,948 0.8357 23,611,282 15 184 2,118,319,926
F1 3 25,884,018 0.9210 28,104,254 15 109 6,367,802,320
F1 4 20,763,198 1.0462 19,846,299 15 44 22,968,713,055
F1 5 33,358,205 1.1174 29,853,414 15 33 193,751,515,137
G1 2 22,349,004 1.0012 22,322,217 10 346 1,058,148,593
G1 3 22,236,011 0.9978 22,285,038 10 131 1,735,418,734
G1 4 22,481,330 0.9990 22,503,834 9 67 16,366,935,449
G1 5 21,862,276 0.9977 21,912,675 8 31 121,744,702,303
Random Totals: 759,214,534 915,793,760 177 7,653
CATG D1 EXCEPTION VALUES: 37,140,830 48,426,310
Total Test Values 796,355,364 964,220,070

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 48,211,004

Confidence Interval Values(5)

Local Test Value: 796,355,364 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 916,009,066 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,012,431,074 (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