148 years in pictures
1 place on the National Register of Historic Places.
- 1878Arivaca is settled
Each edition grades its towns against each other only.

With 268 residents, this town was settled in 1878.
49% of residents live below the poverty line in Arivaca, against 12% in Arizona’s towns and 9.6% across U.S. towns. No town among the 141 in Arizona we compare has a lower middle household income than Arivaca. 49% of the land in Arivaca is conserved, above both the Arizona town median (14%) and the median of U.S. towns (4.3%). The biggest place to walk is Buenos Aires National Wildlife Refuge, 1,074 acres with 3.4 miles of trail. Arivaca has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
In a town this size, neighbors are the best guide. Ask them anything.
1 place on the National Register of Historic Places.
Arivaca is unincorporated, so Pima County and regional agencies provide most services.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.
Ordered by what stands out in Arivaca.
A bachelor’s degree or higher: 35% of adults 25 and older, vs 33% across Arizona. The age of the median resident in Arivaca is 67.1 years.
| Arivaca | Arizona towns | U.S. towns | |
|---|---|---|---|
| Median age | 67.1 years | 41.9 years | 40.5 years |
| Bachelor’s degree or more, 25+ | 35% | 24% | 29% |
Somewhere between 10% and 59% women
The Census survey reached too few of Arivaca’s residents to say more: its margin here is ±24.2 points. Across Arizona, 50.1% of residents are women.
| Arivaca | AZ | U.S. | |
|---|---|---|---|
| Under 10 | 0% | 11.3% | 11.6% |
| 10 to 17 | 10.4% | 10.3% | 10.3% |
| 18 to 24 | 0% | 9.4% | 9.1% |
| 25 to 34 | 0% | 13.8% | 13.7% |
| 35 to 44 | 0% | 12.7% | 13.2% |
| 45 to 54 | 26.1% | 11.6% | 12.2% |
| 55 to 64 | 12.7% | 12% | 12.7% |
| 65 to 74 | 31% | 10.8% | 10.2% |
| 75 and older | 19.8% | 8.1% | 7% |
| No diploma | 0% | 10.6% | 10.4% |
| High school | 36.3% | 23.5% | 26% |
| Some college | 29.2% | 23.3% | 19.1% |
| Associate’s | 0% | 9.3% | 8.8% |
| Bachelor’s | 34.6% | 20.3% | 21.6% |
| Graduate | 0% | 13% | 14.1% |
U.S. Census Bureau · ACS 2020-2024 5-year estimates · in a town of 300, single groups can be off by several points
For Arivaca, the trail network density is 0.7 miles per square mile. 20 miles of trail in 2 parks and preserves.
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Buenos Aires National Wildlife Refuge | 3.4 mi | 1,074 |
| 2. Schoolhouse Park | 0.2 mi | 3 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
62% of Arivaca’s expected losses from natural hazards come from wildfires, followed by inland flooding at 31%. Expected storm and flood damage is higher than in 99% of U.S. communities.
FEMA National Risk Index · OpenFEMA
Jobs in Arivaca fell by 84 from 2013 to 2023, to 70. Only 4% of working residents stay in Arivaca for work; the rest commute out. The top destinations are Tucson (16%), Phoenix (15%) and Sahuarita (8%). For half of commuters, work is under 52 miles away.
Census LEHD 2023 · ACS
NOAA U.S. Climate Normals, 1991–2020
On the CDC’s 32 measures, Arivaca is ahead of Arizona on 7 and behind on 12. For adults here, the share who binge drink is 11%. Among adults in the town, 45% have high blood pressure and 17% report frequent physical distress.
| Arivaca | Arizona towns | U.S. towns | |
|---|---|---|---|
| Binge drink (CDC PLACES) | 11% | 14% | 16% |
| High blood pressure (CDC PLACES) | 45% | 36% | 35% |
| Frequent physical distress (CDC PLACES) | 17% | 15% | 14% |
| Yearly checkup (CDC PLACES) | 81% | 75% | 79% |
| What stands out | Arivaca | AZ |
|---|---|---|
| Fewer binge drinkers | 10.9% | 15.3% |
| Fewer adults facing housing insecurity | 8.9% | 12% |
| More adults with COPD | 11.2% | 6.6% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
None within 15 miles of Arivaca; the nearest are
About 0 of every 100 Arivaca residents are enrolled in college, against 6 across Arizona.
Where Arivaca’s working residents go each day. Line width shows the share.
Census LEHD 2023
Unincorporated community in Pima County
Arivaca (O'odham: Ali Wa:pk) is an unincorporated community in Pima County, Arizona, United States. It is located 11 miles (18 km) north of the Mexican border and 35 miles (56 km) northwest of the port of entry at Nogales. The European-American history of the area dates back at least to 1695, although the community was not founded until 1878. Arivaca has the ZIP code 85601. The 85601 ZIP Code Tabulation Area had a population of 909 at the 2000 census.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Short answers, built from the data on this page.
Arivaca has fewer than 1,000 residents, too few for fair grades; the figures below are still real.