Just two cases separated the 25-34 and 35-44 age categories, amassing 2,138 and 2,140 cases respectively.
All the cases are in the Eastern Health region, and each person has been directed to isolate.
Across B.C., 1,533 cases of COVID-19 were reported over the same period, while 26 people died of the disease.
"As always, we know this is such a challenging and hard time for families, for caregivers and for communities to lose loved ones to this virus", said provincial health officer Dr. Bonnie Henry.
Henry's update also included three new health-care outbreaks: at Eden Gardens and Wexford Creek in Nanaimo, and at Shaughnessy Care Centre in Port Coquitlam.
The latest updates mean B.C.is now dealing with 15 outbreaks in long-term care and assisted living, and six in acute care units. Henry said 231 people are in hospital, 74 of whom are in critical or intensive care.
State health officials confirmed another 1,480 COVID-19 cases on Monday, which is based on 62,852 new molecular tests, according to the Department of Public Health.
Of today's new cases, 373 are male and 366 are female. He said there is a huge range in the number of contacts per case - from zero to more than sixty.
As B.C. tries to keep its COVID-19 reproductive rate below one, meaning that people who contract the virus only pass it on to one person or fewer, the reproductive rate has risen above one in several regions, particularly in the Lower Mainland.
Dr Ronan Glynn, Deputy Chief Medical Officer, said: "With the commencement of vaccination of people aged over 85 in the community, today marks a significant milestone as we seek to protect the most vulnerable from this pandemic".
This is a developing story.