Rents in San Antonio jumped 26% over the first nine months of 2024, according to a new study by online roommate-matching service SpareRoom. To compile its numbers, SpareRoom analyzed some 80,000 roommate postings on its website across 29 of the nation's largest metro areas, comparing the asking price for rent split between roomies during the first three quarters of this year. Postings on SpareRoom in the San Antonio metro jumped from $725 in the first quarter to $946 in the third quarter, according to the analysis.