KDP categories · Top KDP authors
Water Supply & Land Use (Nature & Ecology, Books): Amazon KDP category data
Amazon Books Best Sellers data for Water Supply & Land Use (Nature & Ecology, Books), updated Nov 3, 2026: median price $22.57, median 72 reviews, average rating 4.5 and a KDPTop opportunity score of 34/100 (highly competitive).
| Price range (middle 50%) | $15.35 – $31.24 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 14% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 4% of the parent category Nature & Ecology (1,709), one of the easier corners under it.
- The same niche in Kindle eBooks scores 22, 12 points lower than here.
- 14% of its best sellers came out in the last 90 days, more than in 78% of Books categories: readers here keep buying new titles.
Top 10 Water Supply & Land Use best sellers
-
A Navy Seal's Bug-In Guide: How to Turn Your House Into the Safest Place on Earth
by Joel Lambert
- List rank#1
- Price$37
- Rating4.7
- Reviews5,015
-
Prepare Your Home for a Sudden Grid-Down Situation: Take Self-Reliance to the Next Level with Proven Methods and Strategies to Survive a Grid-Down ... the Modern Family to Prepare for Any Crisis)
by Ted Riley
- List rank#2
- Price$14.99
- Rating4.5
- Reviews1,460
-
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)
- List rank#3
- Price$17.97
- Rating4.8
- Reviews194
-
Bug-In Home Survival Guide For American Dads: Fortress Your Family Before The Next Blackout & Empty Shelves Hit | Ex-SEAL’s 90-Day Protocol To Defend Your Home While Others Panic And Beg
by Ryan Garrison
- List rank#4
- Price$29.90
- Rating4.0
- Reviews75
-
Prepper's Water Survival Secrets: Cost-Effective Water Collection, Filtration, Purification & Storage Strategies for Your Family to Thrive in Any Crisis
by Hadassah Lewis
- List rank#5
- Price$13.99
- Rating4.8
- Reviews116
-
The Prepper's Water Survival Guide: Harvest, Treat, and Store Your Most Vital Resource
by Daisy Luther
- List rank#6
- Price$14.04
- Rating4.5
- Reviews1,328
-
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 in Uncertain Times (Self Reliance Essentials)
- List rank#7
- Price$24.99
- Rating4.8
- Reviews55
-
Cadillac Desert: The American West and Its Disappearing Water, Revised Edition
by Marc Reisner
- List rank#8
- Price$2.99
- Rating4.6
- Reviews1,441
-
Water Projects: The Complete DIY Guide to Building Self-Sufficient Water Systems for Your Home, Cabin, or Garden
by Evan Whitlock
- List rank#9
- Price$16.99
- Rating4.4
- Reviews23
-
The WW3 Prepper’s Survival Bible: Your Definitive Long-Term Survival Guide | 1000 Days of No Grid Survival Projects, Bug-In Plans, Homesteading, Medicine, Off-Grid Living, Water Filtration & More
by Bud R. Hoyles
- List rank#10
- Price$27.97
- Rating4.6
- Reviews312
Same niche in Kindle eBooks: Water Supply & Land Use
FAQ
Is Water Supply & Land Use a good niche for Amazon KDP?
Its KDPTop opportunity score is 34/100, which makes it highly competitive. The median best seller has 72 reviews and sells for $22.57.
How many reviews do you need to rank in Water Supply & Land Use?
The median best seller has 72 reviews, and 64% of them have fewer than 100.
What do Water Supply & Land Use best sellers cost?
The median price is $22.57; half of the best sellers are priced between $15.35 and $31.24.
Can new books break into Water Supply & Land Use?
14% 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.