KDP categories · Top KDP authors
Water Supply & Land Use (Nature & Ecology, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Water Supply & Land Use (Nature & Ecology, Kindle eBooks), updated Nov 3, 2026: median price $9.99, median 30 reviews, average rating 4.4 and a KDPTop opportunity score of 22/100 (highly competitive).
| Price range (middle 50%) | $4.99 – $11.99 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 16% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 3% of the parent category Nature & Ecology (1,034), one of the easier corners under it.
- The same niche in Books scores 34, 12 points higher than here; worth checking both.
- 16% of its best sellers came out in the last 90 days, more than in 78% of Kindle eBooks categories: readers here keep buying new titles.
Top 10 Water Supply & Land Use best sellers
-
The Prepper's Water Survival Handbook: Easy to Follow Steps to Find, Filter, Purify and Store Water for Long Term Readiness, Self Reliance and Emergency Preparedness (Self Reliance Essentials Book 1)
- List rank#1
- Price$4.99
- Rating4.8
- Reviews194
-
Cadillac Desert: The American West and Its Disappearing Water, Revised Edition
by Marc Reisner
- List rank#2
- Price$2.99
- Rating4.6
- Reviews1,441
-
The Practical Prepper’s Survival Bible: Your Complete Guide To Crisis Preparation With 100+ No Grid Survival Projects, Homesteading, Canning, Off Grid Living, Medicine, Water Filtration & More
by Cole Barrett
- List rank#3
- Price$2.99
- Rating4.6
- Reviews602
-
Prepper’s Water Purification Survival Bible: How to Find, Harvest, Filter, Purify, and Store Water Off the Grid
by Johnathan Nash
- List rank#4
- Price$6.99
- Rating4.6
- Reviews358
-
Water Projects: The Complete DIY Guide to Building Self-Sufficient Water Systems for Your Home, Cabin, or Garden
by Evan Whitlock
- List rank#5
- Price$9.99
- Rating4.4
- Reviews23
-
The Prepper’s Survival Collection: A Beginner's Guide to Find, Filter and Purify Water + How to Grow, Preserve and Store Food for Emergency Preparedness ... Times (Self Reliance Essentials Book 3)
- List rank#6
- Price$4.99
- Rating4.8
- Reviews55
-
PREPPER’S WATER SURVIVAL BIBLE: Save Your Life with the Only Water Survival Book You’ll Ever Need! Complete Action Plan to Find, Harvest, Filter, Purify, ... Emergency! (PREPPER SURVIVAL BIBLE BOOK 1)
by CONDITION 1: READY
- List rank#7
- Price$9.99
- Rating4.7
- Reviews54
-
Essential Rainwater Harvesting: A Guide to Home-Scale System Design (Sustainable Building Essentials)
by Michelle Avis P. Eng
- List rank#8
- Price$12.99
- Rating4.6
- Reviews142
-
Earth's Living Water: Its History, Its Ruin, and the Way Back (The Stone and Water Series)
- List rank#9
- Price$12.99
- Reviews-
-
The Simple Prepper's Survival Bible: Master 7 Strategies to Guide You Through Emergency & Disaster Preparedness While Sheltering in Place & Without Breaking the Bank (Simple 7 Book 1)
by Michael W. Ryan
- List rank#10
- Price$6.99
- Rating4.9
- Reviews23
Same niche in Books: Water Supply & Land Use
FAQ
Is Water Supply & Land Use a good niche for Amazon KDP?
Its KDPTop opportunity score is 22/100, which makes it highly competitive. The median best seller has 30 reviews and sells for $9.99.
How many reviews do you need to rank in Water Supply & Land Use?
The median best seller has 30 reviews, and 72% of them have fewer than 100.
What do Water Supply & Land Use best sellers cost?
The median price is $9.99; half of the best sellers are priced between $4.99 and $11.99.
Can new books break into Water Supply & Land Use?
16% 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.