US Households by Annual Income

The chart below shows the number of households in the US by their annual income in 2007, 2011 and 2015. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

Cambridge IELTS 18 Academic Test 2 Writing Task 1 visual

Annotated response

8 correction notes

Showing 8 correction notes.

The chart provides data on the distribution of American households by their yearly income levels for the years 2007, 2011, and 2015.

Overall, most income categories experienced an upward trend throughout the period, with the exception of the $50,000–$74,999 bracket. It is also notable that households earning between $75,000 and $99,999 consistently represented the smallest group across all three years.

In 2007, the number of households earning less than $25,000 stood at around 25 million, lower than the 27 million in the $25,000–$49,999 bracket and higher than the 21 million in the $50,000–$74,999 group. By 2011, grew, with the under-$25,000 and $25,000–$49,999 groups peaking at 28 and 30 million respectively. However, by 2015, both categories to 27 and 28 million. Meanwhile, the $50,000–$74,999 bracket remained relatively stable throughout the period.

In contrast, the showed different patterns . Households earning $100,000 or more were the largest group in 2007, at approximately 29 million, while those in the $75,000–$99,999 category accounted for only 14 million. The former dropped moderately to 27 million in 2011 before rising sharply to 33 million by 2015. saw a modest decline in 2011 but recovered to reach 16 million in 2015.

Overall assessment

Why this response received Band 7.5

The response covers all five income categories across the three years with an accurate, data-supported overview and clear comparisons, which is its strongest aspect. The main limitation is a slight tendency toward mechanical paragraph progression and some imprecise descriptive phrasing, alongside a minor typo.

IELTS criteria

How each score was decided

Task Achievement

8.0

The response presents a clear overview of the dominant trends, covers all five income brackets across all three years, and the reported figures match the chart closely with well-chosen comparisons.

Coherence and Cohesion

7.0

The information is logically organised by income level with effective use of cohesive devices such as 'Overall', 'However', and 'In contrast', though progression within paragraphs is at times mechanical.

Lexical Resource

7.0

There is a good range of topic-appropriate vocabulary, including 'bracket', 'peaking', 'declined moderately', and 'recovered', used with reasonable precision despite occasional looseness such as 'stood at'.

Grammatical Range and Accuracy

7.0

A variety of complex structures, including relative clauses and participle constructions, is used flexibly and accurately, with only minor slips such as the spacing error before a full stop.