diff --git a/esphome/components/wifi/wifi_component.cpp b/esphome/components/wifi/wifi_component.cpp
index ba25bc9f76..58b12f193b 100644
--- a/esphome/components/wifi/wifi_component.cpp
+++ b/esphome/components/wifi/wifi_component.cpp
@@ -644,13 +644,13 @@ void WiFiComponent::setup_ap_config_() {
   }
   this->ap_setup_ = this->wifi_start_ap_(this->ap_);
 
-  auto ip_address = this->wifi_soft_ap_ip().str();
+  char ip_buf[network::IP_ADDRESS_BUFFER_SIZE];
   ESP_LOGCONFIG(TAG,
                 "Setting up AP:\n"
                 "  AP SSID: '%s'\n"
                 "  AP Password: '%s'\n"
                 "  IP Address: %s",
-                this->ap_.get_ssid().c_str(), this->ap_.get_password().c_str(), ip_address.c_str());
+                this->ap_.get_ssid().c_str(), this->ap_.get_password().c_str(), this->wifi_soft_ap_ip().str_to(ip_buf));
 
 #ifdef USE_WIFI_MANUAL_IP
   auto manual_ip = this->ap_.get_manual_ip();
diff --git a/esphome/components/wifi/wifi_component_esp8266.cpp b/esphome/components/wifi/wifi_component_esp8266.cpp
index 9d99e0b94c..764ac0a6c4 100644
--- a/esphome/components/wifi/wifi_component_esp8266.cpp
+++ b/esphome/components/wifi/wifi_component_esp8266.cpp
@@ -8,6 +8,7 @@
 
 #include <utility>
 #include <algorithm>
+#include <span>
 #ifdef USE_WIFI_WPA2_EAP
 #include <wpa2_enterprise.h>
 #endif
@@ -371,7 +372,8 @@ bool WiFiComponent::wifi_sta_connect_(const WiFiAP &ap) {
   while (!connected) {
     uint8_t ipv6_addr_count = 0;
     for (auto addr : addrList) {
-      ESP_LOGV(TAG, "Address %s", addr.toString().c_str());
+      char ip_buf[network::IP_ADDRESS_BUFFER_SIZE];
+      ESP_LOGV(TAG, "Address %s", network::IPAddress(addr.ipFromNetifNum()).str_to(ip_buf));
       if (addr.isV6()) {
         ipv6_addr_count++;
       }
@@ -413,19 +415,18 @@ const LogString *get_auth_mode_str(uint8_t mode) {
       return LOG_STR("UNKNOWN");
   }
 }
+// Format IP address to provided buffer, returns pointer to buf for convenience
 #ifdef ipv4_addr
-std::string format_ip_addr(struct ipv4_addr ip) {
-  char buf[20];
-  sprintf(buf, "%u.%u.%u.%u", uint8_t(ip.addr >> 0), uint8_t(ip.addr >> 8), uint8_t(ip.addr >> 16),
-          uint8_t(ip.addr >> 24));
-  return buf;
+char *format_ip_addr_to(struct ipv4_addr ip, std::span<char, network::IP_ADDRESS_BUFFER_SIZE> buf) {
+  snprintf(buf.data(), buf.size(), "%u.%u.%u.%u", uint8_t(ip.addr >> 0), uint8_t(ip.addr >> 8), uint8_t(ip.addr >> 16),
+           uint8_t(ip.addr >> 24));
+  return buf.data();
 }
 #else
-std::string format_ip_addr(struct ip_addr ip) {
-  char buf[20];
-  sprintf(buf, "%u.%u.%u.%u", uint8_t(ip.addr >> 0), uint8_t(ip.addr >> 8), uint8_t(ip.addr >> 16),
-          uint8_t(ip.addr >> 24));
-  return buf;
+char *format_ip_addr_to(struct ip_addr ip, std::span<char, network::IP_ADDRESS_BUFFER_SIZE> buf) {
+  snprintf(buf.data(), buf.size(), "%u.%u.%u.%u", uint8_t(ip.addr >> 0), uint8_t(ip.addr >> 8), uint8_t(ip.addr >> 16),
+           uint8_t(ip.addr >> 24));
+  return buf.data();
 }
 #endif
 const LogString *get_op_mode_str(uint8_t mode) {
@@ -582,8 +583,10 @@ void WiFiComponent::wifi_event_callback(System_Event_t *event) {
     }
     case EVENT_STAMODE_GOT_IP: {
       auto it = event->event_info.got_ip;
-      ESP_LOGV(TAG, "static_ip=%s gateway=%s netmask=%s", format_ip_addr(it.ip).c_str(), format_ip_addr(it.gw).c_str(),
-               format_ip_addr(it.mask).c_str());
+      char ip_buf[network::IP_ADDRESS_BUFFER_SIZE], gw_buf[network::IP_ADDRESS_BUFFER_SIZE],
+          mask_buf[network::IP_ADDRESS_BUFFER_SIZE];
+      ESP_LOGV(TAG, "static_ip=%s gateway=%s netmask=%s", format_ip_addr_to(it.ip, ip_buf),
+               format_ip_addr_to(it.gw, gw_buf), format_ip_addr_to(it.mask, mask_buf));
       s_sta_got_ip = true;
 #ifdef USE_WIFI_LISTENERS
       for (auto *listener : global_wifi_component->ip_state_listeners_) {
@@ -635,8 +638,9 @@ void WiFiComponent::wifi_event_callback(System_Event_t *event) {
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
       auto it = event->event_info.distribute_sta_ip;
       char mac_buf[MAC_ADDRESS_PRETTY_BUFFER_SIZE];
+      char ip_buf[network::IP_ADDRESS_BUFFER_SIZE];
       format_mac_addr_upper(it.mac, mac_buf);
-      ESP_LOGV(TAG, "AP Distribute Station IP MAC=%s IP=%s aid=%u", mac_buf, format_ip_addr(it.ip).c_str(), it.aid);
+      ESP_LOGV(TAG, "AP Distribute Station IP MAC=%s IP=%s aid=%u", mac_buf, format_ip_addr_to(it.ip, ip_buf), it.aid);
 #endif
       break;
     }
diff --git a/esphome/components/wifi/wifi_component_libretiny.cpp b/esphome/components/wifi/wifi_component_libretiny.cpp
index e9ccb86871..296f76746d 100644
--- a/esphome/components/wifi/wifi_component_libretiny.cpp
+++ b/esphome/components/wifi/wifi_component_libretiny.cpp
@@ -6,6 +6,7 @@
 #include <cinttypes>
 #include <utility>
 #include <algorithm>
+#include <span>
 #include "lwip/ip_addr.h"
 #include "lwip/err.h"
 #include "lwip/dns.h"
@@ -233,11 +234,12 @@ const char *get_auth_mode_str(uint8_t mode) {
 
 using esphome_ip4_addr_t = IPAddress;
 
-std::string format_ip4_addr(const esphome_ip4_addr_t &ip) {
-  char buf[20];
+// Format IP address to provided buffer, returns pointer to buf for convenience
+char *format_ip4_addr_to(const esphome_ip4_addr_t &ip, std::span<char, network::IP_ADDRESS_BUFFER_SIZE> buf) {
   uint32_t addr = ip;
-  sprintf(buf, "%u.%u.%u.%u", uint8_t(addr >> 0), uint8_t(addr >> 8), uint8_t(addr >> 16), uint8_t(addr >> 24));
-  return buf;
+  snprintf(buf.data(), buf.size(), "%u.%u.%u.%u", uint8_t(addr >> 0), uint8_t(addr >> 8), uint8_t(addr >> 16),
+           uint8_t(addr >> 24));
+  return buf.data();
 }
 const char *get_op_mode_str(uint8_t mode) {
   switch (mode) {
@@ -530,8 +532,9 @@ void WiFiComponent::wifi_process_event_(LTWiFiEvent *event) {
       break;
     }
     case ESPHOME_EVENT_ID_WIFI_STA_GOT_IP: {
-      ESP_LOGV(TAG, "static_ip=%s gateway=%s", format_ip4_addr(WiFi.localIP()).c_str(),
-               format_ip4_addr(WiFi.gatewayIP()).c_str());
+      char ip_buf[network::IP_ADDRESS_BUFFER_SIZE], gw_buf[network::IP_ADDRESS_BUFFER_SIZE];
+      ESP_LOGV(TAG, "static_ip=%s gateway=%s", format_ip4_addr_to(WiFi.localIP(), ip_buf),
+               format_ip4_addr_to(WiFi.gatewayIP(), gw_buf));
       s_sta_state = LTWiFiSTAState::CONNECTED;
 #ifdef USE_WIFI_LISTENERS
       for (auto *listener : this->ip_state_listeners_) {