KDP categories · Top KDP authors
Boulder: Amazon KDP category data
Amazon Books Best Sellers data for Boulder, updated Nov 2, 2026: median price $15.99, median 5 reviews, average rating 4.2 and a KDPTop opportunity score of 24/100 (highly competitive).
| Price range (middle 50%) | $12.99 – $22.77 |
|---|---|
| Average rating | 4.2 |
| New releases (90 days) | 4% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its review barrier is lower than in 90% of Books categories: the median best seller has only 5 reviews, so new books can chart with few.
- Its median reviews are 36% of the parent category Colorado (14), one of the easier corners under it.
- Only 4% of its best sellers are under 90 days old, fewer than in 82% of Books categories: established titles hold the list.
Top 10 Boulder best sellers
-
Lonely Planet Colorado: Plan the Trip of a Lifetime | Detailed Itineraries & Maps | Insider Tips | Covers Denver, Boulder, Rocky Mountain National Park and more (Travel Guide)
by Liza Prado
- List rank#1
- Price$20.99
- Rating4.3
- Reviews9
-
60 Hikes Within 60 Miles: Denver and Boulder: Including Fort Collins and Rocky Mountain National Park
by Mindy Sink
- List rank#2
- Price$13.10
- Rating4.7
- Reviews142
-
Colorado Bucket List: 200 Active Adventures Across Denver, Estes Park, Aspen, Durango and Telluride, With Trailheads, Rapids, Hot Springs and Summit Drives
- List rank#3
- Price$18.99
- Reviews-
-
StreetSmart® USA Western Interstate Road Map by VanDam ― Eco plastic coated, planning & travel map of the USA w/all federal, state hwys, attractions & ... and Spanish Edition) Map – March 10, 2026
- List rank#4
- Price$10.95
- Rating4.6
- Reviews21
-
Boulder Travel Guide: Explore the Flatirons, Scenic Trails, Pearl Street & the Best Places to Visit in Colorado’s Outdoor Capital (COLOR)
by Nielsen Turner
- List rank#5
- Price$14.99
- Reviews-
-
Base Camp Denver: 101 Hikes in Colorado's Front Range
by Pete KJ
- List rank#6
- Price$15.92
- Rating4.8
- Reviews84
-
The Best Boulder Hikes (Colorado Mountain Club Pack Guides)
by Boulder Group
- List rank#7
- Price$13.68
- Rating4.8
- Reviews13
-
Boulder, Golden Map (National Geographic Trails Illustrated Map, 100) | Books
- List rank#8
- Price$14.95
- Rating4.7
- Reviews65
-
Moon Colorado Camping: The Complete Guide to Tent and RV Camping (Moon Outdoors)
by Joshua Berman
- List rank#9
- Price$17.88
- Rating4.5
- Reviews172
-
100 Things Colorado Fans Should Know & Do Before They Die (100 Things...Fans Should Know)
by Brian Howell
- List rank#10
- Price$16.95
- Rating4.5
- Reviews15
FAQ
Is Boulder a good niche for Amazon KDP?
Its KDPTop opportunity score is 24/100, which makes it highly competitive. The median best seller has 5 reviews and sells for $15.99.
How many reviews do you need to rank in Boulder?
The median best seller has 5 reviews, and 97% of them have fewer than 100.
What do Boulder best sellers cost?
The median price is $15.99; half of the best sellers are priced between $12.99 and $22.77.
Can new books break into Boulder?
4% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.