Zillow Observed Rent Index (ZORI) time series by geo tier

Returns the Zillow Observed Rent Index - a smoothed measure of the typical rent observed in a region. Values are in USD per month and cover January 2015 through the latest published month. ZORI is smoothed but NOT seasonally adjusted (Zillow preserves the mild rent seasonality).

Available at national, metro, county, city, ZIP, and neighborhood tiers. Zillow does not publish state-level rent; requesting /zori/state returns a structured 404 with an explanation pointing at the metro-level file.

Data Provided by Zillow Group. Source: Zillow Research public CSV drops (zillow.com/research/data/). Used under Zillow's free-for-public-use-with-attribution policy.

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application/json

Zillow Observed Rent Index observations per region at the requested tier, ordered ascending by month.

Bodyapplication/json

Example

{
    "data": {
        "metric": "zhvi",
        "geo_type": "metro",
        "unit": "string",
        "label": "string",
        "region_filter": "string",
        "start_month": "string",
        "end_month": "string",
        "regions": [
            {
                "RegionID": 0,
                "SizeRank": 0,
                "RegionName": "string",
                "RegionType": "string",
                "StateName": "string",
                "observations": [
                    {
                        "month": "2026-03-31",
                        "value": 0
                    }
                ],
                "count": 315,
                "property1": "string",
                "property2": "string"
            }
        ],
        "count": 1,
        "source_url": "https://files.zillowstatic.com/research/public_csvs/zhvi/Metro_zhvi_uc_sfrcondo_tier_0.33_0.67_sm_sa_month.csv",
        "dataset_last_modified": "string",
        "attribution": "Data Provided by Zillow Group (Zillow Research, zillow.com/research/data/)."
    },
    "meta": {
        "endpoint": "/api/v1/fred/us/cpi",
        "data_time": "2026-04-16T14:30:00Z",
        "response_time": "2026-04-16T14:30:12Z",
        "provider": "Sugra API v1.0.1",
        "source": "string",
        "fallback_used": true,
        "fallback_chain": [
            "string"
        ],
        "cached": true
    }
}

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