5-year history · 32 cities · sourced

OC Rental Market — Historical Trends

Every chart below is rendered live from our public data warehouse. Rent series are pulled monthly from Zillow ZORI, macro from the St. Louis Fed, and demographics from the U.S. Census. Full source list at the bottom, and every API endpoint is open at /data/api.php.

Rent index — top 5 OC cities, 2021-2026

Zillow Observed Rent Index (smoothed, all-homes), monthly
Source: Zillow ZORI · API: /data/api.php?series=rent_zori_overall

30-year mortgage rate

Monthly average — Freddie Mac PMMS via FRED

Cap rate — multifamily by city

Latest available; range bars where reported
Source: NGP ticker history (extracted from CBRE / JLL / M&M reports). Confidence: medium.

Multifamily price per unit

Latest reported $/door, all asset classes
Source: NGP ticker history. Confidence: medium.

Renter household share by city

% of occupied units that are renter-occupied — ACS 5-year, latest vintage
Source: U.S. Census ACS 5-year (B25003)

Language spoken at home — Orange County

Top categories, ages 5+, ACS 5-year
Source: ACS 5-year (C16001)

Age distribution — Orange County (overall)

Adult cohorts, ACS 5-year, latest vintage
Source: ACS 5-year (B01001)

Data sources

Zillow ZORI (Observed Rent Index)
Smoothed all-homes-plus rent index, monthly, by city. zillow.com/research/data
FRED — Federal Reserve Economic Data
30-year mortgage (MORTGAGE30US), fed funds (FEDFUNDS), unemployment (UNRATE / CAUR / LOSA106UR), CPI (CPIAUCSL), housing starts (HOUST). fred.stlouisfed.org
U.S. Census — ACS 5-year
Demographics, vacancy, language, age cohorts at the place level. Vintages 2019-2024. census.gov/acs
NGP ticker history (legacy)
Manually-curated cap rate / $-per-unit / vacancy estimates extracted from published CBRE, JLL, and Marcus & Millichap reports. observation_type=extracted_report, confidence=medium.

Every record in our warehouse carries source_id, source_ref, pulled_at, and observation_type. Download a sample CSV to see provenance per row.