Table 2.

Nine county sample used for validation.

Growth Trajectory	County	Primary City	Housing Units (1990)	Housing Units (2015-19)	Change
Declining	Orleans Par., LA	New Orleans	225,573	191,808	−33,765
	St. Louis city, MO	St. Louis	194,919	176,729	−18,190
	Wayne Co., MI	Detroit	832,710	815,102	−17,608
Growing	Orange Co., FL	Orlando	282,686	535,981	253,295
	Tarrant Co., TX	Fort Worth	491,152	767,808	276,656
	Riverside Co., CA	Riverside	483,847	840,501	356,654
Stable	Allegheny Co., PA	Pittsburgh	580,738	600,399	19,661
	Essex Co., NJ	Newark	298,710	317,314	18,604
	Hamilton Co., OH	Cincinnati	361,421	379,402	17,981