Data updated: July 2026

Joanna Castro β
@jcastro4 Β· Instagram Β· CO Β· self-improvement
About Joanna Castro
Joanna Castro, known as jcastro4 on Instagram, is a lifestyle creator focused on self-improvement. With a follower count of 125,219, she shares content that resonates with her audience through inspirational and motivational themes. Her posts include reels, stories, and static images, showcasing an authentic and personal tone. Based in Colombia, Joanna engages with her followers in Spanish, reflecting her cultural background. Some content may require brand review.
@jcastro4's followers & following
@jcastro4 currently has 125,219 followers on Instagram and follows 2,584 accounts, a follower-to-following ratio of 48.46. That places the account in the mid tier of self-improvement creators.
@jcastro4's content
@jcastro4 has published 274 posts to date, working across reels, stories, static-posts. The account's content is classified under self-improvement. Bio: βVamos a vivir! Sinβ¦β¦β
AI quality check on @jcastro4
Zaver's AI analyzed this account across 20+ parameters before listing it publicly. No blocking issues were detected in our standard screening.
- Audience location & demographics
- Engagement quality & authenticity
- Follower growth patterns
- Signs of purchased followers
- Content niche classification
- Brand safety screening
- Posting activity & consistency
- Language & audience fit
@jcastro4's rankings on Zaver
Based on follower count among creators that passed Zaver's indexing quality bar.
@jcastro4's audience
Audience snapshot
50% male Β· 50% female
Core age group25-34
Joanna's audience skews evenly between genders, with a notable concentration in the 25-34 age range. The primary geographic location of her followers is Colombia, indicating a strong local engagement.
Collaboration pricing
Price tierstandard
Get the AI fair-price estimate β free trialWhich brands fit Joanna Castro?
Brands that align with self-improvement, wellness, and lifestyle would fit well with Joanna's content. Her inspirational and motivational approach can effectively communicate brand messages to her engaged audience, making her a suitable partner for campaigns focused on personal growth.
Frequently asked questions
How many Instagram followers does @jcastro4 have?
As of July 2026, @jcastro4 has 125,219 followers (125K) on Instagram, follows 2,584 accounts, and has published 274 posts. Zaver refreshes these numbers on a rolling basis.
How do I contact @jcastro4?
Verified contact details for @jcastro4 β including business email where available β are held in Zaver, alongside contacts for 77M+ other Instagram creators. Zaver users can unlock them instantly and reach out with AI-personalized outreach. Unlock @jcastro4's contact info β free trial β
How much does @jcastro4 charge for a sponsored post?
@jcastro4 sits in the standard price tier on Zaver, based on follower scale, engagement and niche. Zaver's AI pricing model also produces a fair per-post price range with justification, so brands can negotiate from data instead of guessing. Get the AI fair-price estimate β
What is @jcastro4's net worth?
@jcastro4's net worth isn't publicly verified, and Zaver doesn't estimate personal wealth. What can be assessed is sponsored-post earning potential: with 125K followers and a standard price tier in self-improvement, brand collaborations are a meaningful income stream β Zaver's AI pricing model estimates what each placement is worth. See the earning-potential estimate β
Does @jcastro4 have fake followers?
Zaver's AI authenticity check scores @jcastro4 86/100, based on 20+ signals including engagement quality, follower growth patterns and signs of purchased followers. That indicates a predominantly genuine audience. Run the full authenticity check β
Who follows @jcastro4?
@jcastro4's 125K followers skew 50% male / 50% female, core age group 25-34. Full audience breakdowns β age bands, gender split and country-level distribution β are part of @jcastro4's report on Zaver.
Which influencers are similar to @jcastro4?
Zaver lists comparable self-improvement creators in Colombia in the "Influencers like @jcastro4" section on this page, matched by niche, audience size and engagement. Zaver users can also search all 16,119 vetted self-improvement creators with plain-English queries.
What is the follower count?
Joanna has 125,219 followers.
What is the engagement rate?
Engagement rate data is not available.
What is the collaboration pricing?
Joanna is in the standard price tier, but pricing may vary based on specific collaborations.
What is the content niche?
Her primary niche is self-improvement, with a focus on lifestyle content.
Influencers like @jcastro4
Proven at world-record scale: Zaver tracked 1,060 creators in real time for Godrej Ivara's Guinness World Recordsβ’ attempt.
See the case study βGet full insights on this creator before you spend a dollar
Zaver runs 20+ AI checks β real followers, true engagement, fair price β on any creator in seconds.