With heavy hearts, we announce the death of Karen Biernacki of Iselin, New Jersey, who passed away on February 24, 2025 at the age of 60. Family and friends are welcome to send flowers or leave their condolences on this memorial page and share them with the family.

She was predeceased by: her parents, William Biernacki and Joan Biernacki. She is survived by: her husband Michael Johnson; her daughter Grace Ann Johnson; her sister Sharon Rapetti (Frank); her nephew Frank Jr.; her sister JoAnn Gobbo; her nieces and nephews, Alec, Julia and Zach; and her sister Paulette Moscinski.

Viewing will be held on Friday, February 28th 2025 from 3:00 PM to 7:00 PM at the Costello-Koyen Funeral Home - Avenel (399 Avenel St, Avenel, NJ 07001). A prayer will be held on Saturday, March 1st 2025 at 9:15 AM at the same location. A funeral service will be held on Saturday, March 1st 2025 at 10:00 AM at the St. Cecelia's R. C. Church (1 Wilus Way, Iselin, NJ 08830). A graveside service will be held on Saturday, March 1st 2025 at the St. Gertrude's Cemetery (53 Inman Ave, Colonia, NJ 07067).

Funeral arrangement under the care of
Costello-Koyen Funeral Homes

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Fri

Feb 28

Viewing

3:00 PM - 7:00 PM

Costello-Koyen Funeral Home - Avenel
399 Avenel St, Avenel, NJ 07001

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Sat

Mar 01

Prayer

9:15 AM

Costello-Koyen Funeral Home - Avenel
399 Avenel St, Avenel, NJ 07001

Send Flowers

Sat

Mar 01

Funeral service

10:00 AM

St. Cecelia's R.C. Church
1 Wilus Way, Iselin, NJ 08830

Send Flowers

Sat

Mar 01

Graveside service

St. Gertrude's Cemetery
53 Inman Ave, Colonia, NJ 07067

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February 27, 2025

Maryann and Jim Knef lit a candle

“Roommates, Once Upon A Time....But Friends, For All Eternity. Love you and miss you Karen. Until we meet again.”

lisa [ficsor] mace lit a candle

Lisa and Steven [Ficsor] Mace lit a candle

Lisa and Steven [Ficsor] Mace sent flowers

“In loving memory of Karen Biernacki, Please accept our most heartfelt sympathies for your loss.”

February 26, 2025

Diane Osborne & Family lit a candle

“In loving memory of Karen Biernacki, Wishing you peace to bring comfort, courage to face the days ahead and loving memories to forever hold in your hearts.”