Every house hunter ends up with two or three real estate apps open at once, and it’s worth knowing upfront that they’re not independent sources competing on accuracy. In Central Florida, most of them are drawing from the exact same underlying data.
Short version: Zillow, Trulia, Realtor.com, and Redfin all pull the bulk of their Central Florida listings from Stellar MLS, the regional multiple listing service covering Orange, Osceola, Seminole, Polk, Lake, and surrounding counties. What actually differs between the sites is who gets your contact information when you inquire, not which homes they know about. Automated home value estimates on all of them are rough, and least reliable on land, new construction, and off-market homes, worth treating as a starting point, not a number to rely on.
Where the listings actually come from
Stellar MLS is the regional multiple listing service for Central and Southwest Florida, covering Orlando, Tampa, and everything in between, including the core Central Florida counties. It syndicates listings out to Zillow, Realtor.com, and other major portals, which is why the same house tends to show up on all of them within hours of hitting the market. The portals aren’t really competing on which homes they know about, they’re competing on what happens after you click “contact agent.”
Zillow and Trulia are the same company
Zillow acquired Trulia in 2015, and they’ve operated as sister sites since, sharing the same listing data. In practice, Zillow leans toward being the broad marketplace experience, saved searches, mortgage calculators, agent matching, while Trulia leans slightly more toward neighborhood-level detail, crime data overlays, local reviews. Since they draw from the same source, don’t expect to find a listing on one that’s missing from the other.
Realtor.com
Realtor.com is operated by Move, Inc. and licensed by the National Association of Realtors, historically positioned as pulling directly and quickly from MLS feeds. Its lead-routing model can route your inquiry to more than one agent at a time depending on the listing, worth knowing if you’d rather work with one specific agent from the start.
Redfin
Redfin is both a listing portal and an actual brokerage, now owned by Rocket Companies. Unlike Zillow or Realtor.com, inquiries you submit on Redfin generally stay inside Redfin’s own brokerage or a partner agent, rather than being sold to whichever agent paid for that lead. If you’re specifically looking to work with a Redfin agent, that’s the site to start on, if you’d rather keep your options open, it’s less relevant which portal you use first.
Automated home value estimates, and when to ignore them
Zillow’s Zestimate, Redfin’s Estimate, and similar tools on other sites are useful as a rough starting point and not much more. Published error rates for on-market homes run under 2 to 2.5 percent nationally, but for homes not currently listed, that error rate climbs to somewhere around 7 percent, and in markets with fewer recent comparable sales, rural land, unique properties, new construction, it can run considerably higher. These tools work by comparing a property to recently sold similar properties nearby, which is exactly the data land and rural parcels tend to lack. Treat any automated estimate on raw land as close to meaningless, and get an actual appraisal or a local agent’s comparative market analysis before anchoring on a number.
The one most buyers skip: the county property appraiser’s site
Every Central Florida county runs its own property appraiser website, free, public, and often more authoritative than any consumer portal for the specifics of a given parcel, sale history, assessed value, homestead status, and (as covered in the zoning piece) frequently the zoning designation itself. Consumer portals are built for browsing; the county site is built for the actual record. Worth checking both before making an offer, not just the one that’s easier to scroll through on a phone.
Quick comparison
| Site | Best for | Data source | Where inquiries go |
|---|---|---|---|
| Zillow | Broad browsing, saved searches, mortgage tools | Stellar MLS (Central FL) | Premier Agent (paid placement) |
| Trulia | Neighborhood-level detail | Same as Zillow (Zillow-owned) | Premier Agent (paid placement) |
| Realtor.com | MLS-sourced listings, agent variety | Stellar MLS (Central FL) | One or more agents who’ve bought the lead |
| Redfin | Working directly with a Redfin agent | Stellar MLS (Central FL) | Redfin’s own brokerage or partner agents |
| County Property Appraiser | Verified parcel data, sales history, zoning | County records directly | N/A, no agent involved |
Frequently Asked Questions
No. Zillow owns Trulia and both draw from the same listing data, so a home on one will generally appear on the other. They differ mainly in layout and the extra neighborhood detail Trulia surfaces.
Reasonably close for homes currently listed for sale, with published error rates under 2 to 2.5 percent. For off-market homes, land, or unique properties, the error rate climbs substantially, often to 7 percent or more. Treat them as a rough starting point, not a valuation.
No, Redfin is now owned by Rocket Companies. It still operates as both a listing portal and a brokerage, and inquiries generally stay within Redfin’s own agents or partner agents.
Primarily Stellar MLS, the regional multiple listing service covering Orange, Osceola, Seminole, Polk, Lake, and other Central Florida counties, which syndicates data out to the major consumer portals.
Yes. It’s the authoritative source for parcel data, sale history, and often zoning, and it’s free and public, worth checking before relying solely on a consumer portal’s listing page.
Sources:
https://mlsimport.com/zillow-redfin-realtor-com-and-trulia-vs-agent-websites-what-really-works-best/
https://web4realty.com/mls/stellar-mls-smls-idx/
https://houwzer.com/blog/the-zillow-zestimate-can-it-be-trusted/