The figures below reflect minimum estimated monthly reach from the Nextdoor Ads interface (this is not total unique users). For population benchmarking, the population row uses U.S. Census Bureau (18+). The Share row reflects reach as a share of the U.S. 18+ population only for age cohorts where age is known, excluding the Unknown age segment.
The total minimum estimated monthly reach is 23.0M, which corresponds to 8.77% of the U.S. 18+ population (262.27M). A meaningful share of the audience has unknown age (6.204M), so it is best to interpret age patterns by separating the “known-age” structure from the Unknown portion.
Nextdoor’s profile is clearly older-skewing: reach share increases steadily as age increases, and 55+ is the largest cohort by volume among users with known age. Gender composition also stands out: among users with known gender, women represent the majority, while a sizable Unknown gender segment limits how precisely gender conclusions can be applied across the full audience. Finally, the Unknown segments are significant and partially overlap: within the Unknown gender audience, almost half also has Unknown age. That means any demographic conclusions should be stated explicitly as applying “to the portion of the audience where the attribute is known.”
Nextdoor audience in the United States (Min Monthly Reach)
| USA Min Monthly Reach | Unknown | 18-24 | 25-34 | 35-44 | 45-54 | 55+ | Total |
|---|---|---|---|---|---|---|---|
| Female | 1,958,000 | 183,000 | 659,000 | 1,200,000 | 1,600,000 | 5,400,000 | 11,000,000 |
| Male | 1,530,000 | 126,000 | 394,000 | 704,000 | 846,000 | 2,800,000 | 6,400,000 |
| Unknown | 2,716,000 | 87,000 | 247,000 | 396,000 | 454,000 | 1,700,000 | 5,600,000 |
| Total | 6,204,000 | 396,000 | 1,300,000 | 2,300,000 | 2,900,000 | 9,900,000 | 23,000,000 |
| Population (18+) | - | 30,475,343 | 45,311,762 | 44,776,584 | 40,521,171 | 101,181,600 | 262,266,460 |
| Share | -% | 1.30% | 2.87% | 5.14% | 7.16% | 9.78% | 8.77% |
Population Source: U.S. Census Bureau — Country Profile (USA)
The interest ranges below show potential monthly reach for each segment using a conservative minimum estimate and a higher maximum estimate. Practically, this helps you understand which themes can scale broadly on Nextdoor versus which are better suited for tighter targeting.
Small business owners and decision makers. Nextdoor can be a strong channel for reaching local small businesses and owner-operators, often at a lower or more efficient cost than platforms where SMB access is increasingly competitive and expensive (such as LinkedIn, and in many cases Meta or other large networks). If your offer targets local services, B2B products for small teams, or community-driven businesses, this segment can be a meaningful testing ground.
Parents and families. The “Declared Parents” and “Lifestyles – Parents and Family” segments can support parent-focused campaigns, but keep in mind they reflect a broad parent category without child age details. That limitation can make it harder to build precise campaigns for specific subgroups (for example, parents of infants versus parents of teenagers), and may require additional creative, offer framing, or landing-page filtering to qualify the audience.
Nextdoor interest segments in the United States (Min/Max Monthly Reach)
| Interests | Min Monthly Reach | Max Monthly Reach |
|---|---|---|
| Automotive | 6,200,000 | 12,000,000 |
| Books | 5,400,000 | 11,000,000 |
| Caring for Aging Parents | 1,300,000 | 3,800,000 |
| Declared Parents | 2,300,000 | 6,000,000 |
| Early Adopter to New Technology | 4,500,000 | 9,800,000 |
| Finance | 5,900,000 | 11,000,000 |
| Follows High School | 2,100,000 | 5,600,000 |
| Food Delivery | 4,500,000 | 9,800,000 |
| Foodies | 4,400,000 | 9,600,000 |
| Gardening & Landscape | 6,400,000 | 12,000,000 |
| Health | 7,700,000 | 14,000,000 |
| Home Improvement & DIY | 9,200,000 | 16,000,000 |
| Home security | 4,300,000 | 9,600,000 |
| Home services | 3,900,000 | 8,800,000 |
| Insurance | 4,200,000 | 9,400,000 |
| Internet and telecommunications | 1,100,000 | 3,400,000 |
| Lifestyles - Parents and Family | 6,800,000 | 13,000,000 |
| Media | 4,400,000 | 9,800,000 |
| Pet Owners | 7,700,000 | 14,000,000 |
| Professional Sports Fans | 580,000 | 2,100,000 |
| Real Estate | 5,100,000 | 10,000,000 |
| Recent Mover - 6 Months | 504,000 | 1,900,000 |
| Small Business Decision Makers and Owners | 579,000 | 2,100,000 |
| Style & Fashion | 1,200,000 | 3,700,000 |
| Travel | 6,100,000 | 12,000,000 |