La Jolla/UTC rents are down annually. (K.C. Alfred / The San Diego Union-Tribune)
Average monthly rate: $3,166, down 2% in a year
Vacancy rate: 4.4%
North Shore Cities (Del Mar, Encinitas, Solana Beach)
Stores along Highway 101 in Encinitas, where rents are down annually. (Ana Ramirez / The San Diego Union-Tribune)
Average monthly rate: $3,543, down 1.2% annually
Vacancy rate: 3.7%
Downtown San Diego
The exterior of 800 Broadway in downtown San Diego in early February. Vacancy rates are highest in downtown. (Alejandro Tamayo / The San Diego Union-Tribune)
Average monthly rate: $3,214, down 0.4% annually
Vacancy rate: 12.4%
Balboa Park (North Park, University Heights, Hillcrest, South Park)
An apartment at the newly opened Waldorf complex in North Park. (Alejandro Tamayo / The San Diego Union-Tribune)
Average monthly rate: $1,997, down 0.1% annually
Vacancy rate: 4.3%
South I-15 Corridor (Sorrento Valley, Miramar, Mira Mesa)
Rents are flat year-over-year in Mira Mesa. (Adriana Heldiz / The San Diego Union-Tribune)
Average monthly rate: $2,988, flat year-over-year
Vacancy rate: 6.2%
Mission Valley/North Central (Clairemont, Kearny Mesa, Allied Gardens)
A 10-unit accessory dwelling unit complex under construction in April in Clairemont, where rents are essentially flat. (K.C. Alfred / The San Diego Union-Tribune)
Average monthly rate: $2,849, up 0.4% annually
Vacancy rate: 5.6%
Poway/Santee/Ramona
An aerial photo of Santee where rents are essentially flat. (K.C. Alfred / The San Diego Union-Tribune)
Average monthly rate: $2,244, up 0.4% in a year
Vacancy rate: 6.4%
North County (Oceanside, Carlsbad, Vista)
North County rents are essentially flat. Pictured: Oceanside. (John Gastaldo/For the San Diego Union-Tribune)
Average monthly rate: $2,513, up 0.5% annually
Vacancy rate: 4.5%
Central Coast (Pacific Beach, Mission Beach, Ocean Beach, Point Loma, Coronado)
Beachgoers enjoy a sunny day in Pacific Beach. The Central Coast submarket has an average monthly rent rate of $2,421, (K.C. Alfred / The San Diego Union-Tribune)
Average monthly rate: $2,421, up 0.7% in a year
Vacancy rate: 5.2%
National City/South Central
People fish off a pier in National City where rents have risen 0.8% annually. (K.C. Alfred / The San Diego Union-Tribune)
Average monthly rate: $1,922, up 0.8% annually
Vacancy rate: 3.1%
North I-15 Corridor (Escondido, San Marcos)
Rents have risen 0.8% annually in the North I-15 Corridor. (Charlie Neuman / For The San Diego Union-Tribune)
Average monthly rate: $2,445, up 0.8% annually
Vacancy rate: 5.7%
East County (La Mesa, El Cajon, Grossmont, Rolando Village, Talmadge, College Area)
East County rents are up 1% in a year. Pictured: A home in La Mesa. (Alejandro Tamayo / The San Diego Union-Tribune)
Average monthly rate: $1,922, up 1% in a year
Vacancy rate: 3.9%
Chula Vista/Imperial Beach
Rents are up 1.1% annually in the Chula Vista/Imperial Beach submarket, CoStar said. Pictured: Oceanfront homes in Imperial Beach in early April. (Nelvin C. Cepeda / The San Diego Union-Tribune)
Average monthly rate: $2,465, up 1.1% annually
Vacancy rate: 4.8%
Outlying San Diego County (Julian, Campo, Jacumba Hot Springs, Alpine)
Rents are up in outlying San Diego County, CoStar said. Pictured: Julian in May. (John Gastaldo / For The San Diego Union-Tribune)