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Statewide Coefficients of Dispersion
1991 through 2001 Property Value Studies

The table below compares the statewide coefficients of dispersion from the 1991 to 2001# Property Value Studies. The statewide coefficient of dispersion for an individual property category was calculated using the appraisal ratios of all Property Tax Division sample properties in that category from across the state. The overall statewide coefficient of dispersion was calculated using the appraisal ratios for all sample properties.

  Property Category 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 Prel. 2001
A. Single-family Residential 14.11 13.12 12.93 10.74 12.11 11.36 11.06 9.68 9.23 10.05 10.89
B. Multi-family Residential 13.27 10.84 12.66 8.38 10.06 8.43 7.71 7.34 7.63 7.70 9.56
C. Vacant Lots 23.16 22.66 22.01 19.27 18.21 19.86 17.10 15.17 13.68 14.79 17.62
D. Acreage (market value) 15.98* 15.50* 16.31* 18.49* 14.92* 14.60* 15.62* 16.09* 14.51* 14.96* 16.30*
E. Farm & Ranch Improvements * * * * * * * * * * *
F1. Commercial Real 15.58 15.80 14.38 12.59 13.28 11.34 11.01 10.51 10.59 10.56 10.97
F2. Industrial Real ** ** ** ** ** ** ** ** ** ** **
G. Oil, Gas & Minerals 12.94 9.41 11.20 13.01 12.61 18.95 4.85 7.38 20.52 7.15 31.30
J. Utilities 20.38 17.28 14.18 14.35 12.50 12.40 10.76 9.64 12.78 12.26 12.09
L1. Commercial Personal 17.54 16.36 10.83 8.14 11.95 20.73 11.20 9.24 7.52 8.19 8.47
L2. Industrial Personal ** ** ** ** ** ** ** ** ** ** **
M. Other Personal 17.19 ** ** ** ** ** ** ** ** ** **
O. Residential Inventory 13.84 ** ** ** ** ** ** ** ** ** **
  OVERALL 16.18 14.58 13.97 12.86 13.17 13.47 11.64 10.86 11.79 11.53 12.51

# Amended Preliminary as of February 22, 2002
* Beginning in 1989, taxable values for Farm & Ranch Improvements (formerly Category E) were merged into Category D with Acreage (market value).
** Two few sample observations were available to produce meaningful statewide coefficients of dispersion for these properties.