Is an IQ of 59 Good? What It Means & Where You Stand

What Does an IQ of 59 Mean?

An IQ of 59 sits at the boundary between moderate intellectual disability and what some scales classify as mild disability or borderline range at the 0.4th percentile — about 1 in 250 people score at this level. Many individuals at this level develop functional communication, basic literacy, and the capacity for structured work. The practical difference from scores in the low 60s is small, and many individuals at 59 function similarly to those in the mild disability or borderline range. Appropriate support and early intervention make a substantial difference.

An IQ of 59 places you at the 0.4th percentile, which means you scored higher than approximately 0.4% of the general population on a standardized intelligence test. This score falls into the Borderline range on the IQ scale. With a rarity of 1 in 250, this score is less common, but IQ is just one measure of cognitive ability.

To understand how IQ scores are calculated and what they measure, see our complete guide on what IQ is and how it works. For a full breakdown of all score ranges and their meanings, visit our IQ score ranges page.

Career Context for an IQ of 59

Structured and supported employment in food service, retail stocking, custodial work, and manufacturing is realistic for many with appropriate job coaching. Some individuals work in competitive employment settings with reasonable accommodations.

Cognitive Profile at IQ 59

IQ 59 sits near the midpoint of the mild intellectual disability range, representing a profile where verbal reasoning handles concrete narrative content and simple conditional logic. Working memory can hold 4–5 items with active rehearsal on familiar verbal material. Processing speed is below the 4th percentile. Fluid intelligence shows capacity for simple rule application and concrete analogical reasoning. Academic skill development with systematic instruction typically reaches 2nd–3rd grade in reading and arithmetic. Social cognition is a genuine asset — many individuals at IQ 59 demonstrate sophisticated interpersonal skills including friendship maintenance, conflict resolution in familiar settings, and workplace relationship management. Fine motor skills support writing, drawing, and varied practical tasks. The distinction from IQ 57–58 is real: slightly more reliable verbal memory enables modestly greater independence in language-mediated daily tasks.

What Research Says About IQ 59

Project Talent longitudinal data suggest that IQ 59 corresponds to approximately 4th–6th grade reading achievement under favorable educational conditions. NLSY79 analysis (Gottfredson, 1997) documents that individuals in the IQ 55–65 range complete high school at rates of 40–60% often in special education tracks and achieve stable employment at competitive rates in well-matched vocational roles. Supported employment research (Cimera, 2011, Journal of Vocational Rehabilitation) found cost-benefit ratios favoring job coaching for IQ 55–65 adults — tax revenue and reduced service costs exceed program costs within 3–5 years of employment.

Day-to-Day Life with an IQ of 59

A person at IQ 59 might be employed as a veterinary clinic assistant — feeding, watering, and bathing animals, cleaning kennels following a checklist, and assisting technicians with routine procedures. They have worked there 4 years and are valued for their gentleness with animals and reliability. They rent a room in a shared house, manage their daily routine independently, and take a bus to work. They use a smartphone confidently for calls, social media with support for complex content, and music. Financial management — budgeting monthly rent, groceries, and leisure — requires weekly support review from a trusted person.

How Does an IQ of 59 Compare?

Here's how a score of 59 compares to nearby IQ scores:

Frequently Asked Questions

Explore Other IQ Scores

Take our free IQ test to find out where you stand, or learn more about what IQ really measures.