Over the past few years Universal has made scarezones which are themed areas of the park where many scareactors roamed. The first scarezone was in 1994 and was called Horrorwood. These scarezones were usually located on the streets or alley's of the park. In 2004 they used areas in between both parks to use as scarezones because of how both parks were being used to hold the event that year. In 2007 they started using park-wide scarezones which is one scarezone that is located around the whole park. In 2008 they used the Front Lot of the park for a scarezone.
| Name | Description | Scarezones Hosted |
| Amity | Amity was an area of the park between San Francisco and World Expo. Amity Island is the name of the island from Jaws. This area was themed for the Jaws ride that was located there. Both the Jaws ride and Amity were demolished in 2012 to make room for Diagon Alley. | |
| The Boneyard | The Boneyard was an area where guests can see various old movie props. It was located where the Universal Music Plaza is now. This area was used for both houses and scarezones. | |
| Central Park | Central Park is an area Universal uses for Halloween Horror Nights for scarezones. It is the area between Hollywood Boulevard and the Kidzone. This area has been used for scarezones since 2000. |
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| Front Lot | This area of the park is just after the front gates of the park. It is near what used to be the Lucy store but is now the Hello Kitty Store. In 2008 this area was used for a scarezone. This area would later be used as a scarezone once Plaze of the Stars became Illumination Boulevard in 2023. |
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| Hollywood | Hollywood Boulevard is an area of Universal Studios in between The Plaza of the Stars and Central Park. Ever since 1994 this area was used for scarezones. |
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| International Food Bazaar | The International Food Bazaar is an area between World Expo and The Kidzone. It was used for a scarezone once during Halloween Horror Nights 21. | |
| Jurassic Park | Jurassic Park is one of 8 themed 'islands' at Universal's Islands of Adventure. It is themed to the Jurassic Park movie series. It was used to house 3 scarezones from 2002-2005 when Halloween Horror Nights was at the park. | |
| Kidzone | Woody Woodpecker's Kidzone is one of the areas at Universal Studios Florida. It has been used to hold scarezones since 2008 |
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| Lost Continent | Lost Continent is a area in Universal's Islands of Adventure that has been used to house several area-wide scarezones and some shows. | |
| Marvel Super Hero Island | Marvel Super Hero Island is a area in the Islands of Adventure park that was themed after popular Marvel Comics superheroes and villains. Occasionally, Universal used the area for some of their scarezones. | |
| Mel's Drive-In | Mel's Drive-In is a restaurant located in Hollywood Boulevard that has a fifties burger place theme. Since Halloween Horror Nights: Reflections of Fear, the area outside of Mel's has been used for scarezones. |
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| New York | New York is one of the themed areas at Universal Studios Florida. This area has been used for Halloween Horror Nights scarezones since Halloween Horror Nights: Sweet 16. |
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| New York Backlot | The Lost Continent Backlot a.k.a New York Backlot is an area between New York and The Lost Continent. During Halloween Horror Nights XIV Universal used this area for a scarezone. | |
| Park-Wide Scarezones | These scarezones are scarezones that are located throughout the entire park. | |
| Plaza of the Stars | Plaza of the Stars is a street in Production Central, one of the themed areas at Universal Studios Florida. It is the first area you come to when entering the theme-park and has been used to hold scarezones since 2007. It was later rethemed to Minions, and renamed to Illumination Boulevard. This area would stop being used for scarezones in 2023 due to the retheme. |
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| Port of Entry | Port of Entry is an area that they use for some of their scarezones and some shows. It was located right after the ticket area. | |
| San Francisco | San Francisco is an area in Universal Studios between New York and Diagon Alley. In 2010 this area was used for a scarezone as well as 2015-2017. |
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| Seuss Backlot | Seuss Backlot is an area behind Seuss Landing that was used during Halloween Horror Nights XIV for a scarezone. | |
| Seuss Landing | Seuss Landing is an area of Islands of Adventure between Port of Entry and The Lost Continent. It was based on the books of Dr. Seuss. When Halloween Horror Nights moved to Islands of Adventure Universal used it for scarezones. | |
| Shrek Alley | Shrek Alley is an alley between the building where Shrek 4-D is and Soundstage 44. Ever since 2006 when Halloween Horror Nights moved back to Universal Studios, Universal used this area for scarezones until 2012 when Soundstage 44 was demolished to make the Transformers ride. |
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| South Street | South Street is an area of New York that is near the lagoon. In 2018 this area was used for a scarezone. |
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| Springfield U.S.A | Springfield U.S.A is an area in Universal Studios built to resemble the fictional town of Springfield from the Simpsons. It is located between World Expo and Woody Woodpecker's Kidzone. The area has only been used to hold unofficial chainsaw scarezones. |
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| Sting Alley | Sting Alley is a sub-section of the New York area in Universal Studios Florida. It has been used to hold scarezones for Halloween Horror Nights since 2009. |
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| Transformers: The Ride | Transformers: The Ride is one of the rides located at Universal Studios Florida in Production Central. The area around the ride has been used to hold a few Halloween Horror Nights Orlando scarezones. |
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| Toon Lagoon | Toon Lagoon is a area of the park they used for some of their scarezones. It is located in Islands of Adventure between Marvel Superhero Island and Jurassic Park. |
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| World Expo | World Expo is an area of Universal Studios located between Diagon Alley and Springfield. It has only ever held one unofficial scarezone. |