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Real Estate Data: Zillow vs Redfin vs Realtor

Compare the data quality, coverage, and scraping capabilities across the three major US real estate platforms — and how to get the best data from each.

When it comes to real estate data in the United States, three platforms dominate: Zillow, Redfin, and Realtor.com. Each has strengths and weaknesses that matter when you're building data pipelines for market analysis, investment research, or proptech applications.

Data Coverage Comparison

**Zillow** has the broadest coverage with over 110 million properties in their database. Their Zestimate algorithm provides price estimates even for off-market homes. Zillow's data includes:

  • Listing details (price, beds, baths, sqft, lot size)
  • Zestimate and rental Zestimate
  • Tax history and price history
  • Neighborhood data and school ratings

    • **Redfin** pulls directly from MLS data, making it the most accurate for active listings. Their data tends to be fresher and more reliable for currently-listed properties. Redfin provides:

  • MLS-sourced listing data
  • Real-time status updates
  • Agent and brokerage information
  • HOA details and disclosures

    • **Realtor.com** (operated by Move, Inc. under license from NAR) also sources from MLS feeds and offers strong coverage, particularly for new construction and foreclosures.

    Scraping Each Platform

    ScrapeKit provides dedicated scrapers for all three platforms. Here's how they compare:

    Zillow Search

    bash
    curl -X POST https://scrapekit.dev/api/v1/scrape/zillow-search \
  -H "X-API-Key: sk_live_your_key" \
  -d '{"location": "Austin, TX", "price_max": 500000, "beds_min": 3}'

    Zillow search supports advanced filters: price range, bedrooms, bathrooms, square footage, property type (house, condo, townhouse, multi-family, land), and listing status (for sale, sold, pending). For large markets, ScrapeKit automatically splits searches into price buckets to bypass Zillow's pagination limits.

    Redfin Search

    bash
    curl -X POST https://scrapekit.dev/api/v1/scrape/redfin-search \
  -H "X-API-Key: sk_live_your_key" \
  -d '{"location": "Austin, TX"}'

    Realtor Search

    bash
    curl -X POST https://scrapekit.dev/api/v1/scrape/realtor-search \
  -H "X-API-Key: sk_live_your_key" \
  -d '{"location": "Austin, TX"}'

    Which Platform Should You Use?

    For most use cases, we recommend scraping all three and deduplicating by address. This gives you the most comprehensive view of any market. Zillow provides the best historical data, Redfin has the freshest listings, and Realtor.com fills gaps with new construction data.

    Change Detection

    ScrapeKit's Zillow search includes built-in change detection. When you run a search that you've run before, the API automatically tags properties as "new" (appeared since last search), "price_changed" (price went up or down), or "delisted" (no longer in results). This is invaluable for monitoring markets over time.

    Getting Started

    All three real estate scrapers are available on every ScrapeKit plan, starting at $9/month with 50 credits. Each search consumes one credit, regardless of how many results are returned.

    Try ScrapeKit Free →