This report presents a set of tested procedures designed to yield current estimates of housing demand potential among black and Spanish speaking minority groups in United States metropolitan housing market areas during periods between Federal censuses. To produce estimates for the black homeseeker market, the analyst first "ages" the black population as of the last census, estimates how many have moved in or out of the market area, and applies household "headship rates" to determine the number of households which will result. Next the analyst estimates the potential black homeseeker population, the extent and rapidity with which these homeseekers are likely to depart from traditional or ghetto patterns of residence, and the probable effects of current housing supply constraints. Procedures for Spanish speaking households employ the same principles but variations are required due to inadequate data. These procedures should serve to provide usable, although rough, estimates of market potential. Sources of required data are included in the report. (Author/MK)