Exhibit 99.1

ZILLOW, INC. REPORTS RECORD THIRD QUARTER 2013 RESULTS

SEATTLE – November 5, 2013 – Zillow, Inc. (NASDAQ:Z), the leading real estate and home-related marketplace, today announced financial results for the quarter ended September 30, 2013.

“The third quarter was another extremely strong one for Zillow^®, as we exceeded our outlook and delivered record results. We made significant progress toward our priorities to grow audience, grow our Premier Agent business and grow our emerging marketplaces,” said Spencer Rascoff, CEO of Zillow, Inc. “It was also a momentous quarter for our brand as we hosted an unprecedented nationwide event with President Obama. We acquired New York City’s number one real estate website, StreetEasy^®. Additionally, we experienced a significant positive impact during the peak of the home shopping season from our first-ever national brand advertising campaign.”

Third Quarter 2013 Financial Highlights

Operating and Business Highlights

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Opportunities to Participate in Zillow Earnings Report Discussion

Quarterly Conference Call to Include Business Outlook

Zillow management will discuss Zillow, Inc.’s third quarter of 2013 financial results, as well as the fourth quarter 2013 business outlook, in a conference call today at 2 p.m. Pacific Time (5 p.m. Eastern Time) that will also be webcast live. The live webcast of the conference call will be available on the investor relations section of Zillow, Inc.’s website at http://investors.zillow.com/. For those without access to the Internet, the call may be accessed toll-free via phone at 877-643-7152 with conference ID# 84246838. Callers outside the United States may dial 443-863-7921 with conference ID# 84246838. Questions submitted via Zillow’s Twitter account (www.twitter.com/zillow) using the hashtag #ZEarnings, and questions posted on the Zillow Facebook page (www.facebook.com/zillow), will be considered during the Q&A portion of the call, in addition to questions submitted by those dialed in. Following completion of the call, a recorded replay of the webcast and a copy of the prepared remarks will be available on the investor relations section of Zillow, Inc.’s website. The recorded replay will be available until November 12, 2013. To listen to the telephone replay, call toll-free 855-859-2056 with conference ID# 84246838. Callers outside the United States may dial 404-537-3406 with conference ID# 84246838.

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Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 that involve risks and uncertainties, including, without limitation, the statements regarding our belief about execution of our strategic priorities. Statements containing words such as “may,” “believe,” “anticipate,” “expect,” “intend,” “plan,” “project,” “will,” “projections,” “business outlook,” “estimate,” or similar expressions constitute forward-looking statements. Differences in Zillow’s actual results from those anticipated in these forward-looking statements may result from actions taken by Zillow as well as from risks and uncertainties beyond Zillow’s control. Factors that may contribute to such differences include, but are not limited to, Zillow’s ability to maintain and effectively manage an adequate rate of growth; the impact of the real estate industry on Zillow’s business; Zillow’s ability to innovate and provide products and services that are attractive to its users and advertisers; Zillow’s ability to increase awareness of the Zillow brand; Zillow’s ability to maintain or establish relationships with listings and data providers; Zillow’s ability to attract consumers to Zillow’s mobile applications and websites; Zillow’s ability to successfully integrate and realize the benefits of our past or future strategic acquisitions or investments; Zillow’s ability to compete successfully against existing or future competitors; the reliable performance of Zillow’s network infrastructure and content delivery processes; and Zillow’s ability to protect its intellectual property. The foregoing list of risks and uncertainties is illustrative, but is not exhaustive. For more information about potential factors that could affect Zillow’s business and financial results, please review the “Risk Factors” described in Zillow’s Annual Report on Form 10-K for the year ended December 31, 2012 filed with the Securities and Exchange Commission, or SEC, and in Zillow’s other filings with the SEC. Except as may be required by law, Zillow does not intend, and undertakes no duty, to update this information to reflect future events or circumstances.

Use of Non-GAAP Financial Measures

To provide investors with additional information regarding our financial results, this press release includes references to Adjusted EBITDA as well as non-GAAP income (loss) per share, both of which are non-GAAP financial measures. We have provided a reconciliation of Adjusted EBITDA to net income (loss), the most directly comparable GAAP financial measure, and a reconciliation of net income (loss), as reported on a GAAP basis, to net income (loss), as adjusted, and the calculation of non-GAAP net income (loss) per share—basic and diluted, within this earnings release.

Adjusted EBITDA is a key metric used by our management and board of directors to measure operating performance and trends, and to prepare and approve our annual budget. In particular, the exclusion of certain expenses in calculating Adjusted EBITDA facilitates operating performance comparisons on a period-to-period basis.

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Our use of Adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our results as reported under GAAP. Some of these limitations are:

Because of these limitations, you should consider Adjusted EBITDA alongside other financial performance measures, including various cash flow metrics, net income (loss) and our other GAAP results.

Our use of non-GAAP income (loss) per share excludes the impact of share-based compensation expense and the income tax benefit. We believe the exclusion of share-based compensation expense and the income tax benefit facilitates operating performance comparisons on a period-to-period basis. However, you should not consider these metrics in isolation or as substitutes for analysis of our results as reported under GAAP.

About Zillow, Inc.

Zillow, Inc. (NASDAQ: Z) operates the leading real estate and home-related marketplaces on mobile and the Web, with a complementary portfolio of brands and products that help people find vital information about homes, and connect with the best local professionals. Zillow’s brands serve the full lifecycle of owning and living in a home: buying, selling, renting, financing, remodeling and more. In addition, Zillow offers a suite of tools and services to help local real estate, mortgage, rental and home improvement professionals manage and market their businesses. Welcoming nearly 64 million monthly unique users in August 2013, the Zillow, Inc. portfolio includes Zillow.com^®, Zillow Mobile, Zillow Mortgage Marketplace, Zillow Rentals, Zillow Digs™, StreetEasy^®, Postlets^®, Diverse Solutions^®, Agentfolio™, Mortech^® and HotPads™. Zillow is headquartered in Seattle.

Please visit http://investors.zillow.com/, www.zillowblog.com, www.twitter.com/zillow, and www.facebook.com/zillow, where Zillow discloses information about the company, its financial information, and its business which may be deemed material.

The Zillow logo is available at http://zillow.mediaroom.com/index.php?s=191.

Zillow.com, Zillow, StreetEasy, Postlets, Mortech and Diverse Solutions are registered trademarks of Zillow, Inc.

HotPads, Zillow Digs and Agentfolio are trademarks of Zillow, Inc.

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comScore is a registered trademark of comScore, Inc.

Google+ Hangout is a trademark of Google, Inc.

Apple, iPhone and iPad are registered trademarks of Apple.

The Motley Fool is a registered trademark of Motley Fool, Inc.

Twitter is a registered trademark of Twitter, Inc.

Facebook is a registered trademark of Facebook, Inc.

(ZFIN)

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ZILLOW, INC.

UNAUDITED CONDENSED BALANCE SHEETS

(in thousands)

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ZILLOW, INC.

UNAUDITED CONDENSED STATEMENTS OF OPERATIONS

(in thousands, except per share data)

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ZILLOW, INC.

UNAUDITED STATEMENTS OF CASH FLOWS

(in thousands)

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Adjusted EBITDA

The following table presents a reconciliation of Adjusted EBITDA to net income (loss), the most directly comparable GAAP financial measure, for each of the periods presented (in thousands, unaudited):

Non-GAAP Net Income (Loss) per Share

The following table presents a reconciliation of net income (loss), as reported on a GAAP Basis, to net income (loss), adjusted, and the calculation of non-GAAP net income (loss) per share—basic and diluted, for each of the periods presented (in thousands, except per share data, unaudited):

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Revenue by Type

The following tables present our revenue by type and as a percentage of total revenue for each of the periods presented (in thousands, unaudited):

Key Growth Drivers

The following tables set forth our key growth drivers for each of the periods presented:

Unique users source: We measure unique users with Google Analytics. Beginning in December 2012, the reported monthly unique users reflect the effect of Zillow’s December 14, 2012 acquisition of HotPads, Inc. Beginning in September 2013, the reported monthly unique users reflect the effect of Zillow’s August 26, 2013 acquisition of StreetEasy, Inc.

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