Mary Cosby is an American reality television personality, pastor, and entrepreneur who gained widespread recognition after appearing on The Real Housewives of Salt Lake City. Known for her bold personality, luxurious lifestyle, and unique personal story, she has remained one of the most talked-about figures on the show.
Beyond television, Mary is also associated with church leadership and family businesses that she inherited through her late grandmother’s religious empire.
Early Life & Educational Details
Mary Cosby was born on 17th October 1972 in the United States and grew up in a family that was deeply involved in church leadership. Much of her childhood was influenced by her grandmother, Rosemary Cosby, who was a well-known religious leader and the founder of Faith Temple Pentecostal Church.
Because of this environment, Mary spent a lot of time around church activities and family businesses from a young age, which later shaped her future role in the church.
She was raised alongside her siblings in a religious household where faith and family responsibilities were considered very important. After her grandmother passed away, the family experienced disagreements related to leadership and inheritance, which also affected Mary’s relationship with some relatives.
When it comes to education, Mary attended school in the United States for her basic and high school studies. However, she has kept most details about her college education private. While some sources mention that she may have completed higher education, the exact college name and degree have not been publicly confirmed.
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Husband & Kids
Before marrying her current husband, she was married to a man named Dana Harris, but that marriage ended in divorce in 1998. Later the same year, she married Robert Cosby Sr.
Mary and Robert Cosby Sr. got married on September 28, 1998. Their marriage attracted attention because Robert had previously been married to Mary’s grandmother, Rosemary Cosby.
According to Mary, the marriage happened as part of her grandmother’s wishes before she passed away, and it was also connected to church leadership and family responsibilities. Over the years, Mary and Robert have continued their relationship and have worked together in church-related roles and business matters.
The couple had one child together, a son named Robert Cosby Jr., who was born in 2005. He appeared occasionally with his mother in public and on television but mostly stayed out of the spotlight.
Latest Update
In February 2026, She faced a heartbreaking personal loss when her son, Robert Cosby Jr., passed away at the age of 23. This tragic event became a major and emotional moment in her life.
Parents & Siblings
She was born into a large family in the United States. Her father’s name is Robert Cazares, but there is very little publicly available information about him because he has mostly stayed out of the public eye. Her mother, Rosalind “Rozie” Cazares, was more closely connected to the family’s church environment and played an active role in family matters.
One of the most influential people in Mary’s life was her grandmother, Rosemary “Mama” Cosby, a well-known religious leader who founded the Faith Temple Pentecostal Church and built several family businesses. Mary grew up in this strong religious setting, which later shaped her future responsibilities in church leadership.
Mary has multiple siblings and is considered one of the younger children in the family. However, she has chosen to keep most details about her brothers and sisters private, so their names and personal lives are not widely known.
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Net Worth As Of 2026
As of 2026, Mary’s estimated net worth is believed to be around $5 million(source). Her wealth mainly comes from a combination of family inheritance, business involvement, and her career in television.
One of the biggest financial factors in her life was the inheritance she received after the death of her grandmother, who had built churches, properties, and family businesses.
Ethnicity & Religion
She is of African-American ethnicity. She was born and raised in the United States in a family with strong cultural and religious roots connected to the African-American church community.
In terms of religion, Mary follows Christianity, specifically within the Pentecostal tradition. Her faith has played a major role in her life since childhood because her family was deeply involved in church leadership.
Physical Appearance – Height & Weight
Mary Cosby is known for her stylish appearance and glamorous fashion sense, especially through her television presence. Her physical features are generally described as follows:
- Height: Approximately 5 feet 7 inches (170 cm)
- Weight: Around 60 kg (132 lbs) (estimated)
- Hair Color: Black (often styled or dyed in different shades)
- Eye Color: Dark Brown
While exact measurements are not officially confirmed, these details are based on publicly available profiles and her on-screen appearances.
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Career Journey
Her career began through her family’s religious background and business connections. After her grandmother passed away in 1997, Mary became involved in church leadership and responsibilities connected to the family’s organizations. This role later became an important part of her public identity, as she was seen as a church leader working alongside her husband.
Her major breakthrough came in 2020 when she joined the reality television show The Real Housewives of Salt Lake City as one of the original cast members. Her lifestyle, personality, and unique personal story quickly made her stand out, and she became one of the most talked-about people on the show.
Mary appeared as a main cast member in the first two seasons from 2020 to 2022. After that, she stepped away from the show for a period and did not return as a full-time cast member in Season 3.
Later, she came back in Season 4 in a smaller role, which marked her return to television. Her involvement grew again when she rejoined the series as a full-time cast member in Season 5, and she continued appearing in Season 6 through 2026.
Along with television, Mary has continued her involvement in church-related leadership and family business matters over the years. By 2026, she is mainly known for her work in reality television, her religious leadership role, and her continued presence in media discussions.
Quick Bio
| Full Name | Mary Martha Cosby |
|---|---|
| Nick Name | Mary Cosby |
| Date of Birth | October 17, 1972 |
| Age (As of 2026) | 53 Years |
| Birthplace | United States |
| Nationality | American |
| Ethnicity | African-American |
| Religion | Christianity (Pentecostal) |
| Profession | Reality TV Personality, Pastor, Entrepreneur |
| Famous For | The Real Housewives of Salt Lake City |
| Father | Robert Cazares |
| Mother | Rosalind “Rozie” Cazares |
| Siblings | Multiple (Names Not Publicly Known) |
| Marital Status | Married |
| Husband | Robert Cosby Sr. (m. 1998) |
| Children | 1 Son – Robert Cosby Jr. |
| Height | Approx. 5 ft 7 in (170 cm) |
| Weight | Approx. 60 kg (132 lbs) |
| Hair Color | Black |
| Eye Color | Dark Brown |
| Net Worth (2026) | Estimated $5 Million |
| Social Profile | Instagram, X (Twitter) |
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About The Author
