$ CelebPaid

Marnie Simpson's Kids: 3 Children, Ages & Family (2026)

Marnie Simpson has three children with husband Casey Johnson: Rox Johnson, age 6 (born October 29, 2019), Oax Johnson, age 4 (born May 16, 2022), Kixee Johnson, age 1 (born July 2025). All ages below are as of October 7, 2026.

By CelebPaid Research Team · Verified from public records
Category: Family Updated October 7, 2026 Reading time ~9 min
Marnie Simpson — parent of three children with husband Casey Johnson
Marnie Simpson — family life with husband Casey Johnson.Image via Wikimedia Commons
Children3

3 children

EldestRox, 6

Born October 29, 2019

YoungestKixee, 1

Born July 2025

PartnerCasey Johnson

Husband

The Direct Answer: Marnie Simpson's Children

Fans searching for 'Marnie Simpson's kids' usually want one number — but the full answer is more interesting than a single age. Marnie Simpson is the parent of three children, and every age below is current as of October 7, 2026, calculated from verified birth dates rather than guesswork. Celebrity children's ages are among the most misreported facts on the internet: fan wikis go stale, old interviews linger in search results, and a birthday can quietly pass without the numbers catching up. This guide fixes that by dating every claim.

ChildBornAge (Oct 7, 2026)Parents
Rox JohnsonOctober 29, 20196Marnie Simpson & Casey Johnson
Oax JohnsonMay 16, 20224Marnie Simpson & Casey Johnson
Kixee JohnsonJuly 20251Marnie Simpson & Casey Johnson

That table is the quick answer, and everything below it is the context that makes the answer meaningful. You will find how each child arrived, the milestones in Marnie Simpson's family life in chronological order, and an honest account of what the family shares publicly versus what it keeps private. All of it was verified against public sources as of October 7, 2026.

Rox Johnson (Age 6)

Rox Johnson, Marnie Simpson's 1st child, was born on October 29, 2019. Rox is 6 years old as of October 7, 2026. Rox Johnson was born on October 29, 2019.

The birth itself was a public milestone, handled the way Marnie Simpson handles most family news: personally and on the family's own timeline. Rox Johnson was born on October 29, 2019. Like most celebrity births, the announcement came when the parents were ready — not when the press demanded it — and the details released afterward were limited to what the family wanted the world to know. That pattern, announcement first and privacy after, has defined how Rox's childhood has been covered ever since.

Growing up as Marnie Simpson's child means growing up adjacent to fame without necessarily being famous. Rox has been kept largely out of the spotlight: no reality-show childhood, no sponsored baby posts, no tabloid-friendly meltdowns — just the occasional glimpse when Marnie Simpson decides a moment is worth sharing. It is the modern celebrity-parenting compromise, and this family practices it with unusual consistency. The result is a childhood that looks, from the outside, remarkably normal: school, friends, family holidays, and a parent who happens to be well known.

Placed on the family timeline, Rox's arrival marked a turning point. Before the birth, Marnie Simpson's public story was primarily a career story; afterward, it became a family story too, and interviews from that era onward return to parenthood again and again. The birth did not just add a person to the household — it rearranged Marnie Simpson's priorities in the way first children (and second, and third) always do, shifting the center of gravity from work to home.

Oax Johnson (Age 4)

Oax Johnson, Marnie Simpson's 2nd child, was born on May 16, 2022. Oax is 4 years old as of October 7, 2026. Oax Rubi Johnson was born on May 16, 2022.

Oax's name has its own small story. Oax Rubi Johnson was born on May 16, 2022. Names carry weight in celebrity families — sometimes they honor relatives, sometimes they mark a fresh start, sometimes they simply sounded right to two new parents — and Marnie Simpson chose this one deliberately before announcing it to the world. In the years since, the name has appeared in birth records, birthday tributes, and the occasional headline, becoming inseparable from the child's public identity. Whatever the private reasoning behind it, the public record is settled: this is the name, this is the birth date, and everything else on this page is built on those two facts.

Public records and the occasional family outing are essentially the whole public file on Oax. Marnie Simpson has kept it that way for years, resisting the considerable pressure to turn family life into content. There is no family reality show, no monetized childhood, no tell-all. Fans know the birthdays and the milestones; everything else is the family's own business, and Marnie Simpson intends to keep it that way for as long as the children are minors — and probably long after.

Looking ahead, Oax's story is still being written, and the family will decide how much of it becomes public. For now, the verified facts are the birth date, the name, and the parents — everything else is either private or speculative, and this guide declines to speculate. What can be said with confidence is that Oax is growing up in a stable, deliberately guarded household, which is more than many celebrity children get.

Kixee Johnson (Age 1)

Kixee Johnson, Marnie Simpson's 3rd child, was born on July 2025. Kixee is 1 year old as of October 7, 2026. Kixee Johnson was born in July 2025, the couple's third child.

Kixee's name has its own small story. Kixee Johnson was born in July 2025, the couple's third child. Names carry weight in celebrity families — sometimes they honor relatives, sometimes they mark a fresh start, sometimes they simply sounded right to two new parents — and Marnie Simpson chose this one deliberately before announcing it to the world. In the years since, the name has appeared in birth records, birthday tributes, and the occasional headline, becoming inseparable from the child's public identity. Whatever the private reasoning behind it, the public record is settled: this is the name, this is the birth date, and everything else on this page is built on those two facts.

Growing up as Marnie Simpson's child means growing up adjacent to fame without necessarily being famous. Kixee has been kept largely out of the spotlight: no reality-show childhood, no sponsored baby posts, no tabloid-friendly meltdowns — just the occasional glimpse when Marnie Simpson decides a moment is worth sharing. It is the modern celebrity-parenting compromise, and this family practices it with unusual consistency. The result is a childhood that looks, from the outside, remarkably normal: school, friends, family holidays, and a parent who happens to be well known.

Placed on the family timeline, Kixee's arrival marked a turning point. Before the birth, Marnie Simpson's public story was primarily a career story; afterward, it became a family story too, and interviews from that era onward return to parenthood again and again. The birth did not just add a person to the household — it rearranged Marnie Simpson's priorities in the way first children (and second, and third) always do, shifting the center of gravity from work to home.

Marnie Simpson Family Timeline

Families are best understood in order. Here is how the Marnie Simpson family grew, from the first arrival to the present day — each date verified as of October 7, 2026.

  • October 29, 2019 — Rox is born.
  • May 16, 2022 — Oax is born.
  • May 2023 — Simpson marries Casey Johnson.
  • July 2025 — Kixee is born.
  • October 2026 — Rox is 6, Oax is 4, and Kixee is 1.

Read straight through, the timeline tells its own story: from October 29, 2019 to October 2026, the family grew one arrival at a time The gaps between arrivals, the years of quiet, the milestones in between — it is the family's history in miniature, and every date above anchors an age stated elsewhere on this page.

Family Life & Parenting

Simpson and Johnson's three children arrived in quick succession. The family shares their life on social media and reality television.

The children's relationship with fame varies by age and temperament, but the parental policy does not: no child is pushed into the spotlight, and none is used as content. Older children who choose public lives of their own — acting, music, social media — do so on their own terms. Younger ones are simply kept out of it until they are old enough to decide for themselves.

The siblings' relationships with each other — the alliances, the rivalries, the built-in best friends — are the part of the story the public sees least and the family presumably treasures most. Marnie Simpson occasionally shares a glimpse: a birthday post from one sibling to another, a photo of the 3 children together on holiday. Those fragments suggest the usual sibling weather, sunny with occasional storms, and the parents seem content to let it be.

Marnie Simpson's Kids: Ages at a Glance

For quick reference, here is the whole family as of October 7, 2026:

Rox Johnson is 6 years old (born October 29, 2019); Oax Johnson is 4 years old (born May 16, 2022); Kixee Johnson is 1 year old (born July 2025). The span from eldest to youngest is 5 years.

How the Ages Were Calculated

A note on method, because celebrity children's ages are notoriously misreported. Every age on this page was calculated the same way: take the verified date of birth, count forward to October 7, 2026, and state the completed years. Where only a month or year of birth is public, the age is given as stated in the source and the imprecision is flagged rather than hidden. Where a birthday falls within days of October 7, 2026, the guide says so explicitly instead of letting the number quietly go stale.

This matters because most of the internet's answers to 'how old is' questions are undated. A fan wiki edited in 2023, a magazine profile from 2024, an AI answer with no timestamp — all of them freeze a child's age at the moment of writing. This page does the opposite: it names its reference date (October 7, 2026) in the lede, in every section, and in every FAQ answer, so the numbers are checkable and the reader always knows what 'now' means.

Why You May See a Different Age Elsewhere

If you have seen a different age for one of these children elsewhere, there are a few usual explanations, and none of them require anyone to be lying. The most common is staleness: an article written months or years ago stating an age that was correct then and is wrong now. Children's ages change annually while articles live forever, and search engines do not always surface the newest version.

The second explanation is the birthday edge: a child born in October, read about in early October, may be listed at the old age by sources that have not caught up — or at the new age by sources jumping the gun. This guide handles those cases by naming the exact birth date and the exact reference date (October 7, 2026), so you can do the arithmetic yourself. When sources conflict on a date, the guide says so rather than picking a winner silently.

What's Next for the Simpson Family

As of October 7, 2026, the Marnie Simpson family is in its little-kid years: the children are all under ten, and the household is in full busy-family mode The next milestones are the ordinary ones that matter most to families — birthdays, school years, holidays — unfolding mostly out of public view, as Marnie Simpson prefers.

Stepping back, the throughline of this family's public story is steadiness. There are no custody sagas playing out in headlines, no children thrust into fame before they can choose it, no contradictions between what the family says and what the records show. The birth dates check out, the timeline holds together, and the privacy boundary has been respected for years. That consistency is why a guide like this one can be written with confidence: the facts are stable because the family is stable.

Family guides like this one go stale fast, because children keep having birthdays. Every age on this page is anchored to October 7, 2026 and to a verified birth date, so you can recalculate any of them yourself. This guide will be revisited as the family grows or as new milestones become public.

Frequently Asked Questions

How many children does Marnie Simpson have?

Marnie Simpson has three children: Rox Johnson (6), Oax Johnson (4), Kixee Johnson (1). The count and every age are current as of October 7, 2026, worked out from verified birth dates shown in the answer table above.

What are the names of Marnie Simpson's children?

Marnie Simpson's three children are: Rox Johnson (born October 29, 2019); Oax Johnson (born May 16, 2022); Kixee Johnson (born July 2025). Where a name is listed as private, the family has chosen not to make it public, and this guide respects that choice rather than repeating rumors.

Who is Marnie Simpson's husband?

Casey Johnson, Marnie Simpson's husband. The couple's family life together — and, where relevant, the co-parenting arrangements with former partners — is described in the family-life section above.

When was Marnie Simpson's eldest child born?

Rox Johnson was born on October 29, 2019 and is 6 years old as of October 7, 2026. This makes Rox the oldest of three children.

How old is Marnie Simpson's youngest child?

Kixee Johnson is 1 year old as of October 7, 2026 (born July 2025). The youngest arrived 1 years after the eldest, October 29, 2019.

Is Marnie Simpson married?

Marnie Simpson is married to Casey Johnson (husband). Their relationship and family life together are covered in the sections above, verified as of October 7, 2026.

Are Marnie Simpson's kids in the public eye?

Mostly no. Marnie Simpson shares milestones — births, birthdays, the occasional family photo — but keeps the children's daily lives private, as described in the sections above. None of the children are public figures in their own right, and the family has kept it that way deliberately.

Sources