Cover - USD ($)	12 Months Ended
	Dec. 31, 2022	Mar. 28, 2023	Jun. 30, 2022
Cover [Abstract]
Entity Registrant Name	HEMPACCO CO., INC.
Entity Central Index Key	0001892480
Document Type	10-K
Amendment Flag	false
Entity Voluntary Filers	No
Current Fiscal Year End Date	--12-31
Entity Well Known Seasoned Issuer	No
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	Dec. 31, 2022
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Entity Common Stock Shares Outstanding		28,281,505
Entity Public Float			$ 0
Document Annual Report	true
Document Transition Report	false
Entity File Number	001-41487
Entity Incorporation State Country Code	NV
Entity Tax Identification Number	83-4231457
Entity Address Address Line 1	9925 Airway Road
Entity Address City Or Town	San Diego
Entity Address State Or Province	CA
Entity Address Postal Zip Code	92154
City Area Code	619
Icfr Auditor Attestation Flag	false
Local Phone Number	779-0715
Security 12b Title	Common Stock, par value $0.001 per share
Trading Symbol	HPCO
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes
Auditor Location	San Diego, California
Auditor Firm Id	3501
Auditor Name	dbbmckennon